Go
here and register her.
She will get either a super fastpass or a GC with the value of a regular ticket for the day.
Here's the info from the Mouse's mouth
Q: What kind of identification do I need to show at the ticket booth?
A: Proper valid identification would be a Driver's License including a photo, Government-issued Photo ID, or a Government-issued Passport. If you are under age 18 and don't have any of the above mentioned ID, an original or a certified copy of a Birth Certificate is required.
Q: I purchased* a valid Annual Passport or a Multi-Day Ticket that I will use for admission on my birthday in 2009, so I don't need to take advantage of this offer. Is there anything else I could receive on my birthday?
A: Yes, you have several options which are available for you to select once you arrive at the Park with your confirmation message, your proper valid ID, and your Passport or Multi-Day ticket that you will use for admission on your birthday. You can choose one of the following:
* A birthday FASTPASS® exchange card+ for a certain number attractions at both
Disneyland® Park and Disney's California Adventure® Park; or
* A birthday fun card in an amount equal to the price of a 1-Day/I1-Park ticket** for certain purchases including select merchandise, tour experiences or for Disney's PhotoPass® on-site services at participating locations at Disneyland® Resort; or
* A 1-Day/1-Park ticket for you to use any time until your next birthday.
*Guests using complimentary ticket media for admission on their birthday are not eligible to receive these listed options.
+The number of birthday FASTPASS exchange cards issued per day is limited and may not be available after 11am. Valid Theme Park admission required. FASTPASS benefit for birthday celebrant and up to 5 members of his/her party.
**Ticket price at Main Entrance ticket booth. Adults receive card in the amount of an adult ticket; children (ages 3-9) receive card in the amount of a child ticket. For terms and conditions of the card and details on participating locations, click here.