Make an appt with a counselor in the financial aid office of the CC you are considering. They can explain your aid situation.
As for Irvine, you will not be applying for transfer admission, you are applying for readmission. Since it sounds like you are still a student at UCI, I suggest you set up a meeting immediately with a counselor to discuss your options regarding readmission down the road. Meeting with a counselor -- that's the advice they give at http://www.humanities.uci.edu/undergrad/current/wr.php
I don't know the rules about what you do if you decide you want to go to a different UC campus after the CC. Ask when you meet with the counselor at UCI.
Best of luck to you.