Check the template FAQ in the template modifications forum :)dont forget to check vbulletintemplates.com
to do it quickly
open the header find
<table border="0" width="{tablewidth}" cellpadding="0" cellspacing="0">
<tr>
<td valign="top" align="left" background="{imagesfolder}/menu_background.gif"><a href="index.php?s=$session[sessionhash]"><img src="{titleimage}" border="0" alt="$bbtitle"></a></td>
<td valign="bottom" align="right" nowrap background="{imagesfolder}/menu_background.gif">
<!-- toplinks -->
<a href="usercp.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_profile.gif" alt="Here you can view your subscribed threads, work with private messages and edit your profile and preferences" border="0"></a>
<a href="register.php?s=$session[sessionhash]&action=signup"><img src="{imagesfolder}/top_register.gif" alt="Registration is free!" border="0"></a>
<a href="calendar.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_calendar.gif" alt="Calendar" border="0"></a>
<a href="memberlist.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_members.gif" alt="Find other members" border="0"></a>
<a href="misc.php?s=$session[sessionhash]&action=faq"><img src="{imagesfolder}/top_faq.gif" alt="Frequently Asked Questions" border="0"></a>
<a href="search.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_search.gif" alt="Search" border="0"></a>
<a href="index.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_home.gif" alt="Home" border="0"></a>
<!-- <a href="member.php?s=$session[sessionhash]&action=logout"><img src="{imagesfolder}/top_logout.gif" alt="Logout" border="0"></a> -->
<!-- /toplinks -->
</td>
</tr>
</table>
and replace with
<table border="0" width="{tablewidth}" cellpadding="0" cellspacing="0">
<tr>
<td valign="top" align="center" background="{imagesfolder}/menu_background.gif"><a href="index.php?s=$session[sessionhash]"><img src="{titleimage}" border="0" alt="$bbtitle"></a></td>
</tr>
<tr>
<td valign="bottom" align="center" nowrap background="{imagesfolder}/menu_background.gif">
<!-- toplinks -->
<a href="usercp.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_profile.gif" alt="Here you can view your subscribed threads, work with private messages and edit your profile and preferences" border="0"></a>
<a href="register.php?s=$session[sessionhash]&action=signup"><img src="{imagesfolder}/top_register.gif" alt="Registration is free!" border="0"></a>
<a href="calendar.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_calendar.gif" alt="Calendar" border="0"></a>
<a href="memberlist.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_members.gif" alt="Find other members" border="0"></a>
<a href="misc.php?s=$session[sessionhash]&action=faq"><img src="{imagesfolder}/top_faq.gif" alt="Frequently Asked Questions" border="0"></a>
<a href="search.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_search.gif" alt="Search" border="0"></a>
<a href="index.php?s=$session[sessionhash]"><img src="{imagesfolder}/top_home.gif" alt="Home" border="0"></a>
<!-- <a href="member.php?s=$session[sessionhash]&action=logout"><img src="{imagesfolder}/top_logout.gif" alt="Logout" border="0"></a> -->
<!-- /toplinks -->
</td>
</tr>
</table>