For the OYCP once you are selected you have to report to the local ROTC det and let them know you are selected. You will get an expeditionary training allocation and go to field training this year. Next academic year you will have to complete some ROTC courses, participate in PT, and other stuff. It isn't too awful bad.
I applied to the OYCP as well, I guess I didn't make it because I had no call from my SJA at all.