great mod and had been trying to make it work myself in vbulletin 4 and have had some success with the 0.7.1 version on vbulletin 4 after manually inserting the wowhead power.js link into headinclude, might be a decent dirty fix for people needing something until sweede can knock something up:
find in headinclude:
Code:
/external.php?type=RSS2&forumids={vb:raw foruminfo.forumid}" />
</vb:if>
</vb:if>
add under:
Code:
<script src="http://www.wowhead.com/widgets/power.js" type="text/javascript"></script>