Affiliate keeps referred person on homepage

So I just activated the Affiliates plugin and went to test it. When I put the affiliates referral link in (http://forkure.com?ref=krazybobby-83) and then try to click the link to become a members (Don't Miss Out- Reserve your fork today), the site just redirects back to the home page so the user can't register.

using buddypress with pro-sites, using the buddypress/wp registration system.

Please advise.