[Unknown553]

Great hack and all, but in the install file it says that you've been having trouble with the div tags. You don't even need the div tag, the A tag has the id attribute too (oh yeah, and there is no title attribute in the A tag either), so you can change

<div id="pm"><a href="private.php?s=$session[sessionhash]" title="Private Messages"><smallfont>$headpm[messages] New PM(s)</smallfont></a></div>
<script language="javascript">
blink('pm');
</script>

to

<a href="private.php?s=$session[sessionhash]" id="pm"><smallfont>$headpm[messages] New PM(s)</smallfont></a>
<script language="javascript">
blink('pm');
</script>

And it works fine, with no concern for HTML errors.