Smackdowns and Alien Resurrection and Spyro 3

Please tell me if smackdown 1 and 2 is protected ,as I dont think they are but there are conflicting answers.Also Is Alien Res protected or not. Also could someone please tell me (call me thick) if the spyro patch on megagames that seems to work and says its US can be used on pal disc. People seem to have used it but not said whether they are US versions or not and Im getting confused now.