Customized Gigya Socializ Wordpress plugin

I need a customized version of of [login to view URL]'s wordpress plugin for their Socialize app. This is my scenario: The Socialize app allows your site to accept authorization from various social sites and Open ID enabled sites such as Facebook and Myspace. I would like to modify the wordpress plugin for this to check for page type on these two specific social networks. So the app would only allow you to register if you are connecting a "musician" or "band" page type, or present a pop up saying you do not me the criteria to register. Right now the plugin for Wordpress will associate the facebook or myspace id with a new account, and then allow access to the website for commenting purposes etc, but I would require that after you are authenticated by which ever service you choose and meet the requirements of the if/else statement then you would be directed to step 2 of registration where more information is required ie, email, city, website etc. This seems complicated, but the Gigya app and Wordpress take care of most of the work and I believe it would only require inserting a few if/else statements and some cleanup, but I cant figure it out. I drew a flow of how it should work. ![][1]