When you are on the WDW website's dining reservation page, click on "dining event" before you put in your date or restaurant, and Fantasmic! Dinner Package will be a choice.
Yes...you need to go to dining events (bar on left of screen under "what restaurant is right for you")and then click on Fantasmic pkg....I got mine for 12/28/11..1:35pm lunch at MM and 6:30pm show.
good luck
Connears
I just type in the search fantasmic package and find it that way. I went to book ours there but the day we wanted was not available. So I called and got the day we wanted. So if it is not available online try calling.