[nerbert]

See what happens when you insert the bold lines into the code. 15% is just a guess, you can adjust the percentage until it's centered (if it works at all!)

<if condition="$show['popups']">
<div class="vbmenu_popup" id="membermenu_menu" style="display:none">
  <table cellpadding="4" cellspacing="1" border="0">
        <tr>
<td width="15%> &nbsp; </td>
<td class="thead">Member Menu</td></tr>
        <tr>
<td width="15%> &nbsp; </td>
            <td class="vbmenu_option" title="nohilite"><a href="memberlist.php$session[sessionurl_q]">$vbphrase[members_list]</a>
</td>
</tr>
</table>
</div>
<!-- NAVBAR POPUP MENUS -->

EDIT: Oh, and remove the align="center"

--------------- Added [DATE]1212423783[/DATE] at [TIME]1212423783[/TIME] ---------------

CORRECTION: Make those bold lines read

<td width="15%"> &nbsp; </td>

There should be quote makes before and after 15%