Just bought the car a few weeks ago and LOVE IT!!!

Drivers power lock switch only unlocks passenger door but doesn't lock it while passenger switch locks and unlocks same door (but you have to really push!). Drivers door does nothing for either switch. Also, drivers power window just quit working. Could this all be related? I have a motor from my old 93 Achieva when it's windows quit but then restarted ... would that motor fit or do I need a new one?? And to get to all this, I'll need to get the door panel off. Any advice before I just start pulling at things?? Any words of advice would be GREATLY appreciated!
Thanks!
Jim