Hi! Just last week I found a video on YouTube showing how to do the quilter's knot. I had read and read and just wasn't getting it. This 12 second video turned the light on for me - maybe it will help you. Here's the link -
http://www.youtube.com/watch?v=ZVzDkAbziLw. Holding the loop of thread they she does is what I wasn't getting - now it works every time.