When affiliates sign up they learn about the Fast Track bonuses and benifits. At first they might not want to join, and unfortunatly you can't make them. All you can do is to remind them of it. I like to remind them after a few days of joining, then again when they are almost to the end of their time limit. This is all you can really do. If they are serious, they will become a Fast Track member. Just do your best is all you can really do.