forumid conditional help in templates please?

[GCC LLC]

I'm trying to edit my forumhome_lastpostby template to display a banner only for a certain forumid. Here's the conditional I'm using, which is not working. Any help is appreciated:

<vb:if condition="$forum['forumid'] == 38">
<div style="float:right;">banner here</div>
</vb:if>

I've also tried $foruminfo['forumid'], and I've even tried making a plugin to register a new variable and then using that in the conditional as follows:

$thisforumid = $forum['forumid'];
vB_Template:reRegister('forumhome_lastpostby',ar ray('thisforumid' => $thisforumid));

Any suggestions? This was so easy in vb3, crazy how it's so difficult (or I'm just missing something terribly easy) in vB4.

Thanks in advance!