its ok man.
at least half of it works for me. i still must be missing something. or maybe that's just the way the trax may be. i don't know. the maya help files are so crappy at times that i could only find a few line's explanation on this. and there it says the clip will show up in the unused poses section of the visor, but actually it shows up in the character poses section of the visor.
so, the maya help on the non-linear is even crappier than the non-linear itself.
if you are learning it for a class, then all the best..
thanks for trying to help out though... :-)