You need to call DTD location directly. Disney dining will book for the Animal Kingdom location only. Sorry I don't have the number on hand, but I'm sure someone will post it if you need it.
Here's another question:
If we made a 7:30pm dinner reservation at the AK Rainforest Cafe, but the AK closes at 7:00pm that day, how do we get back to our resort? Will they still have resort busses running from the AK at say 9:30pm-10:00pm?
Is the AK Rainforest Cafe even open for dinner after park hours?