Ok, so I'm done with this project and thought I'd post how it went for the future. Once you take off the door panel, the glass is connected to the regulator using two rivets. You have to lower the window to the level of 2 access holes to remove the rivets. Once you pop out the pin and drill them out, the glass will be hanging there, so make sure you have someone to hang out to it. Just tape it up in the up position. Next there are two bolts to the right of the regulator, take those out.
Now come the 4 rivets. Use the same method used for the glass to remove them. The regulator should be free now. Unplug the motor and remove it all as one unit. The ford service cd mentioned that i would need to move one of the tracks over to the new regulator, but the unit i got from advance came with a new one, so this was not needed.
Mount the motor to the new unit. The easiest way is to screw the 3 bolts in part way, then rotate the arm so gears engage. Once they are engaged, tighten the motor down. Re-insert the regulator into the door. Getting the regulator to mount in the proper position was tricky. I had to connect the motor and use it to rotate the regulator around until it was lined up properly, otherwise i was fighting the spring and the spring was winning.
Now, the subject of the rivets. I first tried using the biggest rivet i could get in a retail store. No good, it was too small to hold on. I then got the rivets ford used from the dealership. They're not bad pricewise, only $.50 each. Only one problem. They seem to be bigger than any rivet gun I can find. They were bigger than the largest adapter I had for my gun. I then found a post online that said you can use 1/4" - 20 x 1/2" bolts with washers and nuts. I tried this and it worked perfectly. They still allow enough clearance for the regulator to rotate.
I then reattached the two bolts to the arm on the right side. Finally came the glass. Same situation with the rivets. I followed the ford service cd and used 1/4" - 20 x 1" bolts with washers and nuts. This worked fine on the left side, but when i tested the operation, i found that the right bolt was just long enough to catch on the outside door latch bar. I'm going to replace that with a 1/4" - 20 x 3/4" bolt. Given this, you could just use the same bolt on both sides. There is more than enough bolt on a 3/4" for the nut to grab on to.
That's basically it. Feel free to yell at the rivets as you are removing them because they suck.