I had the same problem when I tried to qualify as well. I purchased mine on the 7th and the up-to-date page did not accept that date as well. If you put any date on or after 01/12 it will work. I called Apple about it and they said they were having problems online with qualifying the Mac's. I faxed my order about two week ago and still can't see the status online but iLife up-to-date customer service did confirm they received my fax and will be processing this week.
This sucks because a lot of people have already received their iLife '09 and I have to wait until sometime this week or maybe into next week to receive mine.