J.D.
You may have already done this step, but if not, you need to contact the school to see what is the hold up. I used to be a teacher, and I know that before a child is placed in the gifted program, he/she needs to be tested. Since your daughter was already in the program, her former school needs to send whatever proof the new school needs to admit her--I would imagine there is something standard that they need to access. Perhaps this new school hasn't moved her into the gifted program because they are waiting for the proper paperwork from the former school before they legally can.
I hope this helps! Good luck!