Take a backup of your current HEADER template before trying this.
Then replace the contents of your HEADER template with this
Code:
<div class="above_body"> <!-- closing tag is in template navbar -->
<div id="header" class="floatcontainer doc_header">
<vb:if condition="$stylevar['titleimage']"><div><a name="top" href="{vb:link forumhome}" class="logo-image"><img src="{vb:stylevar titleimage}" alt="{vb:rawphrase x_powered_by_vbulletin, {vb:raw vboptions.bbtitle}}" /></a></div></vb:if>
<div id="toplinks" class="toplinks">
<vb:if condition="$show['member']">
<ul class="isuser">
<li><a href="login.php?{vb:raw session.sessionurl}do=logout&logouthash={vb:raw bbuserinfo.logouthash}" onclick="return log_out('{vb:rawphrase sure_you_want_to_log_out}')">{vb:rawphrase log_out}</a></li>
<vb:if condition="$show['registerbutton']">
<li><a href="register.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase register}</a></li>
</vb:if>
<li><a href="usercp.php{vb:raw session.sessionurl_q}">{vb:rawphrase user_control_panel}</a></li>
<li><a href="{vb:link member, {vb:raw bbuserinfo}}">{vb:rawphrase your_profile}</a></li>
<vb:if condition="$notifications_total">
<li class="popupmenu notifications" id="notifications">
<a class="popupctrl" href="usercp.php{vb:raw session.sessionurl_q}">{vb:rawphrase your_notifications}: <span class="notifications-number"><strong>{vb:raw notifications_total}</strong></span></a>
<ul class="popupbody popuphover">
{vb:raw notifications_menubits}
</ul>
</li>
<vb:else />
<li class="popupmenu nonotifications" id="nonotifications">
<a class="popupctrl" href="usercp.php{vb:raw session.sessionurl_q}">{vb:rawphrase your_notifications}</a>
<ul class="popupbody popuphover">
<li>{vb:rawphrase no_new_messages}</li>
<vb:if condition="$show['pmmainlink']"><li><a href="private.php{vb:raw session.sessionurl_q}">{vb:rawphrase inbox}</a></li></vb:if>
</ul>
</li>
</vb:if>
<li class="welcomelink">{vb:rawphrase welcome_x_link_y, {vb:raw bbuserinfo.username}, {vb:link member, {vb:raw bbuserinfo}}}</li>
<vb:if condition="$vboptions['enablefacebookconnect']">
{vb:raw facebook_header}
</vb:if>
</ul>
{vb:raw template_hook.header_userinfo}
<vb:comment><p>{vb:rawphrase last_visited_x_at_y, {vb:raw pmbox.lastvisitdate}, {vb:raw pmbox.lastvisittime}}</p></vb:comment>
<vb:else />
<ul class="nouser">
<li><a rel="help" href="faq.php{vb:raw session.sessionurl_q}">{vb:rawphrase help}</a></li>
</ul>
</vb:if>
</div>
<div class="ad_global_header">
{vb:raw ad_location.global_header1}
{vb:raw ad_location.global_header2}
</div>
<hr />
</div>