My electric windows stopped working a few months ago. And although your problem doesn't seem to be the same (your Sparks should have picked it up) mine was that the 5 pin relay which is located at the drivers right foot (behind the plastic cover) had blown - simply replacing it (its a standard relay you can get from Halfords etc) return both window to working order. But the fact that you lost the locks and the electric window suggests its a fuse or link wire. The good news is the wiring for that area is relatively straight forward so tracing the fault shouldn't be too difficult.