I haven't decided whether or not to apply yet, so I'm just taking one course at the moment to see how it goes. I do have a copy of the application, however, and it doesn't look too difficult. At the info session I went to it sounds like they let most people in and if they really feel like your chances of getting into med school are slim to none and decide to reject you, I believe they refund the application fee.
GREs are not a requirement for admission, but I think if you have taken them or any other standardized test, they do want to know your scores.
Hope this helps.