After impex, some threads had lost !?

[Mean]

Hello everyone.

I impexed mybb to Vbulletin.
The problem is, now the forums's threads and messages are true (written in forumhome), but when i attempt to look at (for example in programs section) i cannot view the second page in forumdisplay??

[TTG]

Have you updated all counters in admincp ?

[Mean]

Yes, anyway to get those thraeds/messages ??
They can be viewable in archive.