Check out the following sites. It will help if you speak French:

http://aqua.cs.univ-paris8.fr/users0/drieu/welcome.htm

http://www.isdnseattle.net/rayprice/first.htm

http://www.bretagnenet.com/tri-yann/index.html (from this site you can put out a request for help on the Tri Yann mailing list)