J-1 Waiver Application Case #

I arrived here on Oct.29, 2004. I want to know whether I can apply for J-1 Visa Waiver Application Case Number now? I know I need to send a completed Data Sheet, two self-addressed, stamped, legal-size envelopes (S.A.S.E.), and a $136.00 filing fee to the United States Department of State. What else is required? Please tell me at your convenience. Please send your advice to [e-mail]. Thanks a lot.