[kh99]

If you're setting an array called $special_forums in a plugin, like maybe:

global $special_forums;
$special_forums = array(23, 24, 25, 26, 27, 28, 49, 77);

then you can do this:

<vb:if condition="!in_array($GLOBALS['forumid'], $GLOBALS['special_forums'])">

It looks like you were trying to us a phrase to list the forums? That won't work because the part inside the condition is php code, and it won't parse the template tags.