Starting Up Again

My last year of high school I was on a city baseball team. I pitched only in the very last game and since that moment I have gone 2 years with a little bit of throwing here and there. I want to try out for my (D2) college team (we really are not very good at all. In 2010 we went 6-27-1 and last year we were 5-25) but I know I need to work a lot to get back into throwing condition.

I have already started throwing around with a few friends and I do not think I have lost any velocity. I am also trying to schedule a few pitching practices with friends to test my control. However, I do not know what qualifies as D2 and I was wondering if I could get some advice on how to be ready for the next season. Also, is there some paperwork I need to fill out?