No, I had to look it up. I'm still working on the first question I asked. I will update when I make progress...
--------------- Added [DATE]1349460868[/DATE] at [TIME]1349460868[/TIME] ---------------
This is what my web designer said.
Ok, I looked into what they are telling you to do - to disable vbseo and clear it from the .htaccess file. It doesn't look like you have VBSEO. I can't find it anywhere in your admin panel - So I am not really sure what the deal with that is. I did a few searches on vbseo and it looks like it is a separate plugin available for purchase for 149. You didn't buy it did you?
I tried a few different things since I couldn't find what they were talking about. I tried disabling the archive - didn't work, I repaired the thread information - didn't work I checked the rewrite info in your .htaccess file and it looks fine. I changed the url rewrite settings around a few different ways - it didn't work. I also repaired the posts to try to prune any identical posts. that didn't work either. I am at a complete loss. Sorry I can't help you.