Here's what the videos look like. Unfortunately I couldn't grab the file but IF you click on the movie image you'll be taken to the purl page. (I was doing the English Method Purl Stitch incorrectly. Can't wait to try it the RIGHT way! :) )
OMG, I just discovered something that will be really helpful. Go here and scroll halfway down the page until you get to, "Fixing Mistakes". There are videos showing how to fix the following:
Correcting a stitch without unraveling rows
Fixing a run/dropped-stitch
How to re-insert your needle
Recognizing an accidentally twisted stitch
Inserting a needle into destination row, before unraveling
Using a "lifeline"
I'm in knitting heaven!