It's not working for me. I was trying it out with Bidvertiser code and it doesn't work:
Code:
<!-- message -->
<if condition="(($post[postcount] % $vboptions[maxposts] == 1))">
<span style="margin: 2px; float: right; width: 301px; height: 251px;">
<SCRIPT LANGUAGE="JavaScript1.1" SRC="http://bdv.bidvertiser.com/BidVertiser.dbm?pid=84584&bid=241167" type="text/javascript"></SCRIPT>
<noscript><a href="http://www.bidvertiser.com">affiliate program</a></noscript>
</span>
</if>
<div id="post_message_$post[postid]">$post[message]</div>
<!-- / message -->