The problem is with the google indexing. All the vbulletin forums I've seen have a very low pagerank. Usually the index is pagerank of linking page-1 that is lets say 5 and the forum pages are 0 or max 1 for some sites. This is the same on the vbulletin.com site. However the forum pages are indexed by google and the backward links seem to be ok. So I think that google is giving a penality to the forum pages. The problem is the same with thread pages.
Thx
Thx
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