Trouble changing URLs for my forum

[stickskills]

We currently have a Xenforo installation (which I've turned off) in our /forums/ directory, and the vBulletin version that I've imported all of the data to in the /betaforums/ directory.

I'm having trouble getting the URL to change at this point and I can not figure out why. In the 'Site Name / URL / Contact' area, I've changed the 'Forum URL' to: http://[site name]/forums. After that, I rename the /forums/ directory to /forums_xen/ & the /betaforums/ directory to /forums/.

I then reload the forums under [sitename].com/forums & it redirects me to something on my main site. If it doesn't do that, it adds a /s/ before the /admincp/ when I try to reload that. Any advice?