Code:
<!-- staff navigation menu -->
<div class="vbmenu_popup" id="staff" style="display:none">
<table cellpadding="4" cellspacing="1" border="0">
<tr><td class="thead">Navigation</td></tr>
<tr><td class="vbmenu_option"><a href="$vboptions[bburl]/$modcpdir/index.php?$session[sessionurl]">Moderator CP</a></td></tr>
<tr><td class="vbmenu_option"><a href="$vboptions[bburl]/$admincpdir/index.php?$session[sessionurl]">Admin CP</a></td></tr>
</table>
</div>
<!-- / staff navigation menu -->
Use that instead.
The problem you have there is that in the first section of code you posted you have told it to find a menu called 'staff' then in the second section you had called the menu 'newlink_menu' and so confuzed the poor thing.