The link apparently says that the occupancy has been reached ...
But on the FB page of Fashion Festa it says that they will make the link available again from 12:30pm-2:30pm only so if you havent RSVP'd you may still have a chance to do it tomorrow!.
If anything this is the link to RSVP www3.fitnyc.edu/museum/RSVPfashionshow.h
I hope to see lots of you over there
EDIT:: CONFIRMATION EMAILS HAVE BEEN SENT OUT!!! You need a proof of confirmation plus ID to get in on FRIDAY THE 19TH!!