I don't remember where I read it, but google has posted a way to check your sites supplemental results
You can search in google
site:forum.vbulletinsetup.com/&
The important part is the trailing & sign.
I just shut down the profiles to guest to help focus the bots, but you can see I have almost 4k in supplemental results :beat:
http://www.google.com/search?q=site%...ient=firefox-a
I've added a disallow to the robot text for the archive as well.
Anyways... I thought I would let you know how to check how bad your supplemental results are