You get the offer through Hotels.com as well if you book a package. Here's the info I found on the hotels.com website when I just looked. I would call them and ask if you qualify.
"Disney Gift Card
Book a stay for travel now through April 28, 2009 and receive one of the following:
$50 Disney Gift Card for a 2-night stay*, or
$100 Disney Gift Card for a 3-night stay**, or
$150 Disney Gift Card for a 4-night or longer stay***
*Valid for arrivals now through 4/28/09.
**Valid for arrivals now through 4/27/09.
***Valid for arrivals now through 4/26/09. For this Card, guests must book a package
(either: air + hotel or hotel + car).
This offer is not valid for room categories with “Limited Time Offer Rate”. Maximum of one Disney Gift Card per booking. Card is not valid towards hotel or package price. Not valid for previously booked rooms. Cannot be combined with other hotel offers.
The Disney Gift Card can only be used at select participating locations at
Disneyland® Resort, Walt Disney World® Resort,
Disney Cruise Line®,
Disney Store locations in the U.S., and Disneyshopping.com. See participating locations for details. Subject to availability, blackout dates, restrictions, and change without notice. "