I see you edited the post and marked it as solved but for anyone with the same issue in the future one way is to add the canonical link url to the headinclude template.
About Canonical URL:
http://googlewebmastercentral.blogsp...canonical.html
Add this code:
Code:
<if condition="(THIS_SCRIPT == 'showthread')">
<link rel="canonical" href="$vboptions[bburl]/showthread.php?t=$threadinfo[threadid]<if condition="$pagenumber>1">&page=$pagenumber</if>" />
</if>
<if condition="THIS_SCRIPT == 'index'">
<link rel="canonical" href="$vboptions[bburl]/forum.php" />
</if>