clutch disc not releasing help!!

Not sure what you mean by a "Power hand puller". I assume you checked this, but it sounds like a linkage adjustment problem to me. Assuming you purchased and properly installed the correct parts, and it worked OK before, I would think it should work now. If the linkage is over adjusted, you will hear a noise when you push the clutch pedal down all the way. If it is under adjusted, it is possible that the clutch may not disengage. Have you checked that