This may or may not answer your question. I am currnelty finishing my undergraduate degree, graduating in May and talking to Alpha Phi about AI for next fall. (2003). This is only because the Greek organizations on my campus still haze and Alpha Phi was not present on my campus and I am in love with their organization. In order to receive the answer that you want would be to e-mail the headquarters of the greek organization and see what they say. BEST OF LUCK in what ever you decide.
Stephanie