Easy Newbie Question

Just would like to know exactly where and what code i need to change to have the following happen:

logo centered and at the top
buttons below the logo but also centered...

i know this sounds really stupid but for the life of me i can't figure out which part to change...

Thanks

[Admin]

Header template:

<!-- logo and buttons -->
<center>
<table border="0" width="{tablewidth}" cellpadding="0" cellspacing="0">
<tr>
  <td valign="bottom" align="center" nowrap background="{imagesfolder}/menu_background.gif">
   <!-- logo -->
   <a href="index.php?s=$session[sessionhash]"><img src="{titleimage}" border="0" alt="$bbtitle"></a>
   <!-- /logo -->
   <br>
   <!-- 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>  -->
   &nbsp;
   <!-- /toplinks -->
  </td>
</tr>
</table>
<!-- /logo and buttons -->

<!-- content table -->
<table bgcolor="{pagebgcolor}" width="{tablewidth}" cellpadding="10" cellspacing="0" border="0">
<tr>
  <td>