I took some time and found a good video on how to replace the power window regulator on my wife's folks 2000 Grand Marquis. Was great. Didn't leave out anything. Followed in exactly from my phone while performin the task. Very happy with the results. Several months later, my daughter Mercury Sable had the same problem. Took me half as long as the first time. Turned out OK.
However, one thing I'll note... some of the videos were absolute crap! Left out multiple steps, parts, how-to's, etc... If I'd have believed their advice, or followed their steps, there's a good chance I'd have failed.
So do your research and don't believe the first one you read.