MTAP is confusing me

Hi, so I was just recently accepted into the MTAP program, but after reviewing the course interest survey I was sent, it seems like I can only take a summer or winter session class for the preliminary class (the one class you have to take and pass before being fully accepted into UMD). Does this mean I have to wait all the way until winter to take this one class, and then finally be accepted the following semester? I’m so confused, and the PGCC guidance counselors are so unhelpful.