Yes, the princes are there. We had to wait in a forever long line to get Prince Phillip and Prince Charming's autograph. They were with Sleeping Beauty and Cinderella whom we had already seen at CRT, but my DD HAD to wait in line for the princes. They are in Toontown in the building where the characters are. I can't think of the name.
For some reason, I think you can just call the dining number to get the tickets. I might be wrong though.