[Serenity]

to get the blue border that surrounds the site add this code to the header template at the top:

 <table style="background: #hex; border: 3px solid #E1FFC3;" border="0" width="PIX/%" cellpadding="0" cellspacing="0" align="center" ><tr><td>
<DIV align=center>

change the hex color number to what suits your needs.

then put this code:

 </td>
</tr>
</div>

in the footer template before this:

 <!-- / auto DST correction code -->
</if>
<script type="text/javascript">
<!--
 // Main vBulletin Javascript Initialization
 vBulletin_init();
 // Initialize 'Active' Table Cells
 //activecells_init();
//-->
</script>

for some reason it doesnt work on all my skins. so, if it doesnt work quite right, play with the location of the code in the footer template.

hope that helps