Check this link out:
http://www.casb.com/index.php?catid=30
It shows the kinds of course you need to get in, and shows the equivalent courses offered by many institutions.
As for the U of C registration process, I think you might be SOL there as they are preaching about how you will graduate in four years guaranteed. Maybe talk to a dean and explain your situation and you might get a better shake.
EDIT: I assume you are wondering about finishing courses to get into the CASB program itself, and you are not asking about CASB modules