sunfire 2001 trouble removing rotor

I am trying to replace my rotors and pads. Unfortunately they dont make them like they used to and the old rotors warped. I had no problem getting of the callipers, but these rotors are a different story. As far as I can tell there are no positioning screws. I figured a few wacks would be all it would take. Now my car is on jack stands in the driveway and my wife wants to use the car to go shopping. I have packed it in because it has gotten dark. I will try again in the morning. Any advise would be great! What about heating them up with a torch?
Thanks

Come on people! Somebody must have done a brake job on a 2001 Sunfire?
Thanks Again

I wouldn't heat with a torch unless you have exhausted all other avenues. Try spraying WD 40 around the area where the center of the rotor rides and around the wheel studs. This should penetrate far enough to loosen the rust that has frozen the rotor in place. Then hit it with a hammer to break it loose. Good Luck!

heat could very likely ruin the hub bearing, use a good penetrant like break away or PB Blaster, then a little hammer persuasion should do the trick