There are some threads in my forum which has pages etc and shows there are posts in there 13 more messages... But its like blank pages.
Were these threads imported? If so, rebuilding the thread information may solve it. Alternatively, it sounds like data may have actually disappeared. This could be from data corruption or restoration of an inconsistent backup. Unfortunately, if that's the case, there isn't much that can be done. Otherwise, if the counts are simply wrong, rebuilding the thread information should sort the counts.
Yes i transfered from vb to xen, but there is a duplicate thread with same title with same pages. Does it have to do with the redirects?
I suppose it could relate to redirects, yes -- though we don't import redirects (if they're tagged as such properly).
If rebuilding thread info doesn't fix it--try rebuilding the post position counters with it--then it sounds like it could be a problem from the import. It does sound like a redirect being brought across, which would explain the lack of content. This would only happen if it weren't tagged as a redirect in the expected way. You'd just need to (permanently) delete the thread via the inline moderation tools.
