I'm in Florida and was in your same situation.  I graduated in December 08, but took Commerical Law the semester after that.  You can send in your application and your transcripts separately.  So I filled out the application and sent it in right after a graduated, without my transcripts.  And the day Commercial Law was put on my transcripts I sent those in.  So because i sent my application in early, the time it took to be approved after they got my transcripts was a lot faster.  So i suggest doing that.  Send in your application and then send in your transcripts once you take the law class. 

Since your law class will be on your transcripts probably around May, you won't be able to take Reg until probably July.