I Accidently unistalled my sims delux edition .. I do not have the cd's for it anymore.. I was trying to install the sims unleashed expansion pack .. And it played fine.. I saved my progress and quit. I returned later to play and it said it needed to uninstall and then be renstaled I did so.. But now it will not let me play anymore saying I need to install the regular sims.. What do I do?