Just for the record, the javascript navbar does not work with IE browsers.
I'm currently using these tags to get around the problem.
<!--[if IE]>Internet Explorer users will see this text<![endif]-->
<![if !IE]>Everyone else will see this text<![endif]>
In navbar:
put this on top of the page (default vb4 navbar - you may want to edit this to your liking after)
<!--[if IE]>
<div id="navbar" class="navbar">
<ul id="navtabs" class="navtabs floatcontainer<vb:if condition="$show['member'] AND $notifications_total"> notify</vb:if>">
{vb:raw template_hook.navtab_start}
<vb:if condition="!$vboptions['selectednavtab'] AND THIS_SCRIPT != 'search'">
<li class="selected"><a class="navtab" href="{vb:raw vboptions.forumhome}.php{vb:raw session.sessionurl_q}">{vb:rawphrase forum}</a>
<ul class="floatcontainer">
{vb:raw template_hook.navbar_start}
<vb:if condition="$show['searchbuttons']">
<vb:if condition="$show['member']">
<li><a href="search.php?{vb:raw session.sessionurl}do=getnew&contenttype=vBForum_P ost">{vb:rawphrase new_posts_nav}</a></li>
<vb:else />
<li><a href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum _Post">{vb:rawphrase todays_posts}</a></li>
</vb:if>
</vb:if>
{vb:raw template_hook.navbar_after_getnew}
<vb:if condition="$show['pmmainlink']">
<li><a href="private.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase private_messages}</a></li>
</vb:if>
{vb:raw template_hook.navbar_after_pm}
<li><a rel="help" href="faq.php{vb:raw session.sessionurl_q}" accesskey="5">{vb:rawphrase faq}</a></li>
{vb:raw template_hook.navbar_after_faq}
<li><a href="calendar.php{vb:raw session.sessionurl_q}">{vb:rawphrase calendar}</a></li>
{vb:raw template_hook.navbar_after_calendar}
<li class="popupmenu">
<a href="javascript://" class="popupctrl" accesskey="6">{vb:rawphrase community}</a>
<ul class="popupbody popuphover">
{vb:raw template_hook.navbar_community_menu_start}
<vb:if condition="$show['quick_links_groups']">
<li><a href="group.php{vb:raw session.sessionurl_q}">{vb:rawphrase social_groups}</a></li>
</vb:if>
<vb:if condition="$show['quick_links_albums']">
<li><a href="album.php{vb:raw session.sessionurl_q}">{vb:rawphrase pictures_and_albums}</a></li>
</vb:if>
<vb:if condition="$bbuserinfo['userid']">
<li><a href="profile.php?{vb:raw session.sessionurl}do=buddylist"><vb:if condition="$show['friends_and_contacts']">{vb:rawphrase contacts_and_friends}<vb:else />{vb:rawphrase contacts}</vb:if></a></li>
</vb:if>
<vb:if condition="$show['memberslist']">
<li><a href="memberlist.php{vb:raw session.sessionurl_q}">{vb:rawphrase members_list}</a></li>
</vb:if>
{vb:raw template_hook.navbar_community_menu_end}
</ul>
</li>
{vb:raw template_hook.navbar_after_community}
<li class="popupmenu">
<a href="javascript://" class="popupctrl">{vb:rawphrase forum_actions}</a>
<ul class="popupbody popuphover">
<li>
<a href="forumdisplay.php?{vb:raw session.sessionurl}do=markread">{vb:rawphrase mark_forums_read}</a>
</li>
<vb:if condition="$show['member']">
<li>
<a href="profile.php?{vb:raw session.sessionurl}do=editoptions">{vb:rawphrase edit_options}</a>
</li>
<li>
<a href="profile.php?{vb:raw session.sessionurl}do=editprofile">{vb:rawphrase edit_your_details}</a>
</li>
</vb:if>
</ul>
</li>
<li class="popupmenu">
<a href="javascript://" class="popupctrl" accesskey="3">{vb:rawphrase quick_links}</a>
<ul class="popupbody popuphover">
<vb:if condition="$show['member']">
<vb:if condition="$show['member']">
<li><a href="search.php?do=getdaily&contenttype=vBForum_Post">{vb:rawphrase todays_posts}</a></li>
<li><a href="subscription.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase subscribed_threads}</a></li>
</vb:if>
<li>
<a href="javascript://" onclick="window.open(getBaseUrl() + 'misc.php?{vb:raw session.sessionurl}do=buddylist&focus=1','buddylis t','statusbar=no,menubar=no,toolbar=no,scrollbars= yes,resizable=yes,width=250,height=300'); return false;">{vb:rawphrase open_contacts}</a>
</li>
</vb:if>
<vb:if condition="$vboptions['forumleaders']">
<li><a href="showgroups.php{vb:raw session.sessionurl_q}" rel="nofollow">
<vb:if condition="$vb_suite_installed">
{vb:rawphrase view_site_leaders}
<vb:else />
{vb:rawphrase view_forum_leaders}
</vb:if>
</a></li>
</vb:if>
{vb:raw template_hook.navbar_quick_links_menu_pos1}
{vb:raw template_hook.navbar_quick_links_menu_pos2}
{vb:raw template_hook.navbar_quick_links_menu_pos3}
<vb:if condition="$show['wollink']">
<li><a href="online.php{vb:raw session.sessionurl_q}">{vb:rawphrase whos_online}</a></li>
</vb:if>
{vb:raw template_hook.navbar_quick_links_menu_pos4}
</ul>
</li>
{vb:raw template_hook.navbar_end}
</ul>
</li>
<vb:elseif condition="$vboptions['selectednavtab']=='usercp'" />
<li class="selected"><a class="navtab" href="{vb:raw vboptions.forumhome}.php{vb:raw session.sessionurl_q}">{vb:rawphrase forum}</a>
<ul class="floatcontainer">
{vb:raw template_hook.navbar_start}
<vb:if condition="$show['searchbuttons']">
<vb:if condition="$show['member']">
<li><a href="search.php?{vb:raw session.sessionurl}do=getnew&contenttype=vBForum_P ost">{vb:rawphrase new_posts_nav}</a></li>
<vb:else />
<li><a href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum _Post">{vb:rawphrase todays_posts}</a></li>
</vb:if>
</vb:if>
{vb:raw template_hook.navbar_after_getnew}
<vb:if condition="$show['pmmainlink']">
<li><a href="private.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase private_messages}</a></li>
</vb:if>
{vb:raw template_hook.navbar_after_pm}
<li><a rel="help" href="faq.php{vb:raw session.sessionurl_q}" accesskey="5">{vb:rawphrase faq}</a></li>
{vb:raw template_hook.navbar_after_faq}
<li><a href="calendar.php{vb:raw session.sessionurl_q}">{vb:rawphrase calendar}</a></li>
{vb:raw template_hook.navbar_after_calendar}
<li class="popupmenu">
<a href="javascript://" class="popupctrl">{vb:rawphrase community}</a>
<ul class="popupbody popuphover">
{vb:raw template_hook.navbar_community_menu_start}
<vb:if condition="$show['quick_links_groups']">
<li><a href="group.php{vb:raw session.sessionurl_q}">{vb:rawphrase social_groups}</a></li>
</vb:if>
<vb:if condition="$show['quick_links_albums']">
<li><a href="album.php{vb:raw session.sessionurl_q}">{vb:rawphrase pictures_and_albums}</a></li>
</vb:if>
<vb:if condition="$bbuserinfo['userid']">
<li><a href="profile.php?{vb:raw session.sessionurl}do=buddylist"><vb:if condition="$show['friends_and_contacts']">{vb:rawphrase contacts_and_friends}<vb:else />{vb:rawphrase contacts}</vb:if></a></li>
</vb:if>
<vb:if condition="$show['memberslist']">
<li><a href="memberlist.php{vb:raw session.sessionurl_q}">{vb:rawphrase members_list}</a></li>
</vb:if>
{vb:raw template_hook.navbar_community_menu_end}
</ul>
</li>
{vb:raw template_hook.navbar_after_community}
<li class="popupmenu">
<a href="javascript://" class="popupctrl">{vb:rawphrase forum_actions}</a>
<ul class="popupbody popuphover">
<li>
<a href="forumdisplay.php?{vb:raw session.sessionurl}do=markread">{vb:rawphrase mark_forums_read}</a>
</li>
<vb:if condition="$show['member']">
<li>
<a href="profile.php?{vb:raw session.sessionurl}do=editoptions">{vb:rawphrase edit_options}</a>
</li>
<li>
<a href="profile.php?{vb:raw session.sessionurl}do=editprofile">{vb:rawphrase edit_your_details}</a>
</li>
</vb:if>
</ul>
</li>
<li class="popupmenu">
<a href="javascript://" class="popupctrl">{vb:rawphrase quick_links}</a>
<ul class="popupbody popuphover">
<li><a href="subscription.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase subscribed_threads}</a></li>
<li>
<a href="javascript://" onclick="window.open(getBaseUrl() + 'misc.php?{vb:raw session.sessionurl}do=buddylist&focus=1','buddylis t','statusbar=no,menubar=no,toolbar=no,scrollbars= yes,resizable=yes,width=250,height=300'); return false;">{vb:rawphrase open_contacts}</a>
</li>
<vb:if condition="$vboptions['forumleaders']">
<li>
<a href="showgroups.php{vb:raw session.sessionurl_q}" rel="nofollow">
<vb:if condition="$vb_suite_installed">
{vb:rawphrase view_site_leaders}
<vb:else />
{vb:rawphrase view_forum_leaders}
</vb:if>
</a>
</li>
</vb:if>
{vb:raw template_hook.navbar_quick_links_menu_pos1}
{vb:raw template_hook.navbar_quick_links_menu_pos2}
{vb:raw template_hook.navbar_quick_links_menu_pos3}
<vb:if condition="$show['wollink']">
<li><a href="online.php{vb:raw session.sessionurl_q}">{vb:rawphrase whos_online}</a></li>
</vb:if>
{vb:raw template_hook.navbar_quick_links_menu_pos4}
</ul>
</li>
{vb:raw template_hook.navbar_end}
</ul>
</li>
<vb:else />
<li><a class="navtab" href="{vb:raw vboptions.forumhome}.php{vb:raw session.sessionurl_q}">{vb:rawphrase forum}</a></li>
</vb:if>
{vb:raw template_hook.navtab_middle}
<vb:if condition="!$vboptions['selectednavtab'] AND THIS_SCRIPT == 'search'">
<vb:if condition="$show['member']">
<li class="selected"><a class="navtab" href="search.php?{vb:raw session.sessionurl}do=getnew&contenttype=vBForum_P ost" accesskey="2">{vb:rawphrase getnew_tab}</a>
<ul class="floatcontainer">
<li><a href="search.php?{vb:raw session.sessionurl}do=getnew&contenttype=vBForum_P ost">{vb:rawphrase new_posts_nav}</a></li>
<li><a href="search.php?{vb:raw session.sessionurl}do=getnew&contenttype=vBForum_S ocialGroupMessage">{vb:rawphrase new_group_messages_nav}</a></li>
<li><a href="search.php?{vb:raw session.sessionurl}do=getnew&contenttype=vBForum_E vent">{vb:rawphrase new_events_nav}</a></li>
{vb:raw template_hook.navbar_getnew_menu}
<li><a href="forumdisplay.php?{vb:raw session.sessionurl}do=markread">{vb:rawphrase mark_forums_read}</a></li>
</ul>
</li>
<vb:else />
<li class="selected"><a class="navtab" href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum _Post" accesskey="2">{vb:rawphrase getnew_tab}</a>
<ul class="floatcontainer">
<li><a href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum _Post">{vb:rawphrase todays_posts}</a></li>
<li><a href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum _SocialGroupMessage">{vb:rawphrase daily_group_message}</a></li>
<li><a href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum _Event">{vb:rawphrase daily_events}</a></li>
{vb:raw template_hook.navbar_getdaily_menu}
<li><a href="forumdisplay.php?{vb:raw session.sessionurl}do=markread">{vb:rawphrase mark_forums_read}</a></li>
</ul>
</li>
</vb:if>
<vb:elseif condition="$show['member']" />
<li><a class="navtab" href="search.php?{vb:raw session.sessionurl}do=getnew&contenttype=vBForum_P ost" accesskey="2">{vb:rawphrase getnew_tab}</a></li>
<vb:else />
<li><a class="navtab" href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum _Post" accesskey="2">{vb:rawphrase getnew_tab}</a></li>
</vb:if>
{vb:raw template_hook.navtab_end}
</ul>
<vb:if condition="$vboptions['enablesearches']">
<div id="globalsearch" class="globalsearch">
<form action="search.php?do=process" method="post" id="navbar_search" class="navbar_search">
<input type="hidden" name="s" value="{vb:raw session.sessionurl}" />
<input type="hidden" name="securitytoken" value="{vb:raw bbuserinfo.securitytoken}" />
<input type="hidden" name="do" value="process" />
<span class="textboxcontainer"><span><input type="text" value="" name="query" class="textbox" tabindex="99"/></span></span>
<span class="buttoncontainer"><span><input type="image" class="searchbutton" src="{vb:stylevar imgdir_button}/search.png" name="submit" onclick="document.getElementById('navbar_search').submit;" tabindex="100"/></span></span>
</form>
<ul class="navbar_advanced_search">
<li><a href="search.php{vb:raw session.sessionurl_q}" accesskey="4">{vb:rawphrase advanced_search}</a></li>
</ul>
</div>
</vb:if>
</div>
</div><!-- closing div for above_body -->
<![endif]-->
insert this after
<![if !IE]>
<!--- start of ht multi menu-->
<div id="mydroplinemenu" class="droplinebar">
<ul>
<!--
<li><a href="index.php">Home</a></li>
-->
<li><a href="forum.php">Home</a>
<ul>
<vb:if condition="$show['pmmainlink']">
<li><a href="private.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase private_messages}</a></li>
</vb:if>
{vb:raw template_hook.navbar_after_pm}
<li><a rel="help" href="faq.php{vb:raw session.sessionurl_q}">{vb:rawphrase faq}</a></li>
{vb:raw template_hook.navbar_after_faq}
<vb:if condition="$show['member']">
<li><a href="calendar.php{vb:raw session.sessionurl_q}">{vb:rawphrase calendar}</a></li>
</vb:if>
{vb:raw template_hook.navbar_after_calendar}
<li>
<a href="forumdisplay.php?{vb:raw session.sessionurl}do=markread">{vb:rawphrase mark_forums_read}</a>
</li>
<vb:if condition="$show['member']">
<li>
<a href="profile.php?{vb:raw session.sessionurl}do=editoptions">{vb:rawphrase edit_options}</a>
</li>
<li>
<a href="profile.php?{vb:raw session.sessionurl}do=editprofile">{vb:rawphrase edit_your_details}</a>
</li>
</vb:if>
</li>
</ul>
</li>
<vb:if condition="$show['searchbuttons']">
<vb:if condition="$show['member']">
<li><a href="search.php?{vb:raw session.sessionurl}do=getnew&contenttype=vBForum_P ost">New Posts</a></li>
<vb:else />
<li><a href="search.php?{vb:raw session.sessionurl}do=getdaily&contenttype=vBForum _Post">{vb:rawphrase todays_posts}</a></li>
</vb:if>
</vb:if>
<li><a href="blog.php">Blog</a></li>
<li><a href="arcade.php">Arcade</a></li>
<vb:if condition="$show['member']">
<li>
<a href="javascript://" class="popupctrl">{vb:rawphrase community}</a>
<ul>
{vb:raw template_hook.navbar_community_menu_start}
<vb:if condition="$show['quick_links_groups']">
<li><a href="group.php{vb:raw session.sessionurl_q}">{vb:rawphrase social_groups}</a></li>
</vb:if>
<vb:if condition="$show['quick_links_albums']">
<li><a href="album.php{vb:raw session.sessionurl_q}">{vb:rawphrase pictures_and_albums}</a></li>
</vb:if>
<vb:if condition="$bbuserinfo['userid']">
<li><a href="profile.php?{vb:raw session.sessionurl}do=buddylist"><vb:if condition="$show['friends_and_contacts']">{vb:rawphrase contacts_and_friends}<vb:else />{vb:rawphrase contacts}</vb:if></a></li>
</vb:if>
<vb:if condition="$show['memberslist']">
<li><a href="memberlist.php{vb:raw session.sessionurl_q}">{vb:rawphrase members_list}</a></li>
</vb:if>
<!--
{vb:raw template_hook.navbar_community_menu_end}
-->
</ul>
</li>
</vb:if>
{vb:raw template_hook.navbar_after_community}
<li>
<a href="javascript://" class="popupctrl">{vb:rawphrase quick_links}</a>
<ul>
<vb:if condition="$show['member']">
<vb:if condition="$show['member']">
<li><a href="subscription.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase subscribed_threads}</a></li>
</vb:if>
<li>
<a href="javascript://" onclick="window.open(getBaseUrl() + 'misc.php?{vb:raw session.sessionurl}do=buddylist&focus=1','buddylis t','statusbar=no,menubar=no,toolbar=no,scrollbars= yes,resizable=yes,width=250,height=300'); return false;">{vb:rawphrase open_contacts}</a>
</li>
</vb:if>
<vb:if condition="$vboptions['forumleaders']">
<li><a href="showgroups.php{vb:raw session.sessionurl_q}" rel="nofollow">
<vb:if condition="$vb_suite_installed">
{vb:rawphrase view_site_leaders}
<vb:else />
{vb:rawphrase view_forum_leaders}
</vb:if>
</a></li>
</vb:if>
{vb:raw template_hook.navbar_quick_links_menu_pos1}
{vb:raw template_hook.navbar_quick_links_menu_pos2}
{vb:raw template_hook.navbar_quick_links_menu_pos3}
<vb:if condition="$show['wollink']">
<li><a href="online.php{vb:raw session.sessionurl_q}">{vb:rawphrase whos_online}</a></li>
</vb:if>
{vb:raw template_hook.navbar_quick_links_menu_pos4}
</ul>
</li>
<vb:if condition="$show['member']">
<li><a href="album.php">Gallery</a></li>
<vb:else />
<li><a href="register.php">Register</a></li>
</vb:if>
<li><a href="search.php?search_type=1">Search</a></li>
</ul>
</div>
<!--end of ht multi menu-->
</div><!-- closing div for above_body -->
<![endif]>
make sure all of the above is inserted before
<div class="body_wrapper">
<div id="breadcrumb" class="breadcrumb">
<ul class="floatcontainer">
<li class="navbithome"><a href="index.php{vb:raw session.sessionurl_q}" ><img src="{vb:stylevar imgdir_misc}/navbit-home.png" alt="{vb:rawphrase home}" /></a></li>
This way users with IE will see the default style navbar and everyone else will see the awesome javascript navbar.
Not sure if this is the best way of doing it, but at least it works :)