Taken from the pages rules:
This is an Internet-only Giveaway. Giveaway begins on 11/03/06 at 12:01:00 AM (PST) and ends at 11:59:59 PM (PST) on 11/30/06, or when all 4,000 Demo Discs are requested, whichever occurs first.
That's why most people didn't get one (including myself).