It may be that the plastic guide(s) have jammed and will prevent you from moving the window easily. Is the window all the way down? I'd try to use the window up botton while helping the window stay straight with your hands. This will allow you to raise the window enough to access the bolts. If you connect the Air bag, reconnect the battery, then turn the key to position 2, then raise the window. You might need a helper to do this.

If the window motor won't raise the window at all, cutting the cable is another option. That should allow the window to move up and down manually.