Mike Orlen's article from "American Gunsmith" magazine courtesy of Juan Carlos Jobet is here David, with some images of jigs and the process
http://www.picturetrail.com/sfx/album/view/16314697

Jack Rowe's Video
Part 1
http://www.youtube.com/watch?v=PZBtS_WlcG4
Part 2
https://www.youtube.com/watch?v=TnRgaiU5GEs