YAY!!!!!!!!!!!
Thanks!!!!!!!!!!!!!!
for future people, this is the line I used:
Code:
<link rel="canonical" href="{vb:raw vboptions.bburl}/{vb:link forum, {vb:raw foruminfo},null,'forumid','title_clean'}" />
This video describes why its important:
http://www.youtube.com/watch?v=Cm9onOGTgeM
This issue wont be troublesome for many. But for me, I have over 2,000 forums in my vbulletin install. And the names of the forums tend to change.
This could also be an issue for someone who moves from "non-seo" to seo'd URLs - e.g. someone who perhaps does a VBulletin upgrade.
anyway, Thanks everyone!