Yamaha DTXpress/DTXplorer/DTXtreme

Ok....I posted this in another websites forum, but I am finding few 
helpers...:)

I have a DTX Ver 2.0 and a DTXpress, along with about 18 different 
yamaha triggers...(that's why I need both) 

First and foremost, when I hook up the DTX and plug triggers in, the 
snare trigger does not produce a sound from the main pad, but it 
will from the rim only. When I hit the center of the pad, nothing 
happens, but I do see the EQ moving accordingly. When I hook up just 
my DTXpress, I do not have this problem. Maybe someone can set me 
straight...

Second, probably the most important to me.  My two modules came with 
a MOTU FastLane USB midi interface. I am trying to do two 
things....Run both of them together and just hook my amp or 
headphone to one module only. When I try to hook them together w/ a 
midi cord, I get no results. I have to plug in headphones to each 
one separately and they wont interface with each other. I tried the 
same thing with the MOTU, and no dice. Can anyone help? 

Lastly, I am trying to hook the modules up to my pc. Whats the best 
way, or the correct way. I havent had any luck with the motu. The 
manual is very brief on this matter. And if I get it interfaced 
correctly, is the windows software that I can edit my pads 
functions, voice, etc? I also want to be able to load songs, sys.ex 
files, back and forth. Something for the kids can change their 
settings easily, and not mess mine up. 


Any ideas would be great!!