Question on links
 

I have another popular forum with an SEO Mod installed. The forum software can be converted over my Vbulletin, but I have question regarding the links. I have thousands of backlinks from my forum in Google, MSN, Yahoo Etc.

I was wondering if I purchased Vbulletin would it convert my links over exactly the same as they are in the search engines? This is an important question for me because I don't want any broken links.

I also want it so that Vbulletin can be setup without having to have a person register. My forum right now is setup so that you can register, but you don't have to in order to post a message. If the person is not registered, the default name is guest.

Any help would be appreciated.