It happens to all!
I have also noticed that the archive links are like this /forum/archive/index.php:t- instead of /forum/archive/index.php/t- !
edit: The archive links are easily fixed by changing the VBSEO_SLASH_METHOD at vbseo_sitemap_functions.php
I have also noticed that at the Yahoo txt version the links have the html entity & instead of & like this example =forumdisplay.php?f=106&page=19
[high]* EvilHawk clicks install and votes for HotM

[/high]