Did you also remove that metal bracket that goes around the rotor where the caliper is? It is probably held on by two 17 or 19 mm bolts from the back. If all this is removed, the rotor should come off.

-Good luck

__________________
Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record