I did my passenger window regulator. It took me about 2 hours, but I took my time, and it was one of the first repairs that I ever made on a car. I got the part for ~ $130 (including shipping) at http://www.fordpartsonline.com.

Here are some threads on the topic:

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=5531

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=52262

http://www.contour.org/archive/showflat.php?Cat=&Board=UBB3&Number=134426

http://www.coldair.org/archives/0108/msg00332.html

If you don't have a Haynes or Chiltons manual, then I suggest that you get one.

Good luck.

96 Contour SE Duratec V6 24-valve 2.5L ATX 108,000 mi. Replaced: crankshaft w/ DMD, EGR valve (clogged), EVR, DPFE, PCV valve, evap emissions hose & tube (cracked), window regulator (broken), LH & RH PCV tubes, UIM gasket (leak), ignition coil