I'm looking at a diagram right now. All of the motors get power from one pink wire, leading directly from the power window circuit breaker inside the fuse panel, inside the glovebox. It's first stop is the drivers side switch assembly, then over to all the other windows. So since none of the windows are working, it's either a broken wire between pink and the drivers door or a defective circuit breaker-which is only energized when ignition is in the ON postion, but it doesn't mention where it gets that energy from.
So check for power at the Pink wire at the drivers side switch assembly, if none, check at the fuse panel. If there's juice there, it's a break in the wire between the breaker and the door.
Here's the page with the diagram:
http://www.autozone.com/servlet/UiBr...3d800f400f.jsp
Look at 1992 Engine Chassis wiring (continued)
Let me know how this works out!
Also, the air condtioner isn't working at all. It just happens to blow cold because the air outside is cold. Original untouched working A/Cs on cars this old is very rare.