I've posted a release of the animation utilities here:

http://www.twcenter.net/forums/showthread.php?t=105527

The release includes a User's Guide and Tutorial for putting
non-standard skeleton units in game. An updated meshconverter
(version 1_0_4) is included for getting meshes with extra bones back
in-game.

As noted in the other forum, I'll be out of town until June 30. Sorry to
post and run, please leave any bug reports in this thread or the other
and I'll look at them as soon as I get back.