I see the issue - vbadvanced integrated into your forums - every page is a vbadvanced page. I didn't know this was possible..
try this one as your adv_portal template - it will only disaply your centre CMPS blocks :
Code:
$stylevar[htmldoctype]
<html>
<head>
$headinclude
</head>
<body>
$header
$navbar
<div>
<if condition="$show['center_column']">
$home[centerblocks]
</if>
</div>
$footer
</body>
</html>