Once you get to the metal door panel, that's basically as far as you can go- you can't remove the metal.
You'll see 7 GOLD colored screws.. #3 phillips head that will also take a 10mm socket. I recommend using the 10mm socket.
There are 3 screws holding the motor on, and 2 at the top and bottom of the rest of the regulator.
There are 2 silver screws attaching the regulator to your window. (the window has to be all the way down to remove these screws. to do this, you
must plug the up/down button back in and lower the window. even if the regulator is messed up, you can work at it and get it down.
once you have all 9 screws removed (7 gold, 2 silver), you can remove the regulator through the large hole at the bottom of the door. you'll probably
have to hold the window up to do this..
What I do is stick a sheet of paper folded over 8-10 times into the weatherstripping just to the rear of the door lock. when you slide the glass up, it'll
shove that intot he weatherstripping and hold the window in place.
Now that you have the regulator out, it's time to fix or replace it.. figure out how to do that, then to install, just do everything in the reverse steps
from how you took everything apart..
It's not nearly as difficult as it sounds. I can pull out a regulator, fix it, and put one back in under 30 min. :)