Right now they are taking reservations up through February 22
Exceptions are: Cinderella's Royal Table (CRT), Chef Mickey's (CM) and Victoria & Albert's (V&A's)
Beginning on or about November 21 they will open up reservations back to the normal 180 day window. (That will effectively open up February 23 - May 20, 2009)
The exception to the 180 day rule (always) is Bistro de Paris, which is 30 days.
I think that covers it, but I may have missed a detail.