I have multiple urls for every page in vbulletin. How do I get rid of that?

[webdev]

I hope this is the right section for this topic guys. If not, I apologize in advance it just seems like a programming issue to me. I have searched all day for this answer and just cant seem to find it. I am using seomoz which I am sure most of you are familiar with. I am also using vbulletin...