Yamaha DTXpress/DTXplorer/DTXtreme

Hello DTXpress GURUs.

I need some assistance.  I'm trying to create an instrument definiton 
file for the Yamaha DTXpress for Cakewalk (I have Pro Audio 9).  
Cakewalk and their BBS site don't have a clue.  Accessing the DTXpress 
drum kits by number is no problem! However, trying to create a 
definition that will let my computer (Cakewalk) have access to the 
specifics of which Drum is on what MIDI NOTE within each kit.... plus 
.....the specifics of which voice the drum is using.....is proving to 
be one headache.

Has anyone accomplished this feat yet.  I understand if you don't want 
to share the info.  All I need to know....is it possible?  If its 
possible.....I'll just keep hammerin' away at it. 

It would be a source of great motivation on my end knowing that it is 
possible.  Running out out of steam :)