This question seems to come up on most of the Muzzleloading forums and a few other gun forums pretty regularly. Usually it is being asked by a first time builder but sometimes just a guy who has never taken his lock apart. So I put together a short video on how I disassemble a lock and the proper tools required.
http://stolzergunsmithing.wordpress.com/2012/04/23/lock-disassembly-tutorial-video/I hope this helps.
Colin