I notice that if I go to the site from a banner - such that an affiliate_ref number has been passed to the application via a get parameter - when I click on the "Affiliate Log In" link and then choose the "Continue" buttom for a *new* affliliate - which directs to affiliate_signup.php - that all the information in the sign up form is prepopulated with the affiliate information identified by the affiliate_ref number.
In other words, if a person is directed to the site by an affililate (parent) and then wants to become an affiliate themselves (child), all the parent's infomation is exposed on the sign-up form [!!]
Is there another way a person is supposed to sign-up as an affiliate?