Affiliate Marketing Secrets

I have a casting call with Wilhelmina of PA Saturday however I know a few things about scams, since I am a aspiring actress and have done my research to avoid these scams. I know all about John Robert Powers, etc. Based off of my research agencies only operate during the work week and not the weekends. Also Wilhelmina of PA does not charge a joining fee but will charge you to pay for your photo shoots (testing), composite cards, and other related marketing fees. Compared to the reputable Wilhelmina Models website does not allow access to portfolios unless you are an authorized clientele; whereas Wilhelmina of PA allows access to these portfolios. Also I would assume that along with the portfolios shown on the W. PA site there would be a listing of credible clients they have worked with thus far. Now take in mind that Wilhelmina of PA has just launched in 2009, also Wilhelmina of PA IS LISTED AS A AFFILIATE OF WILHELMINA MODELS. http://www.wilhelmina.com/affiliates.cfm So I am confused, why would Wilhelmina Models list Wilhelmina of PA as an affiliate if they are in fact a scam.