If they don't pick your ticket in the lottery, don't panic. They'll let you stick around and take the 1st day of class. Show up to the 2nd day of class, and if someone doesn't show, you're in! That's how i got into the MSF class. 2 people didn't show up for the 2nd day.
Oh, bring a $25 check. I took mine on W broad and they wouldn't take any payment except for checks. No cash, no debit cards, and no credit cards.