Yamaha DTXpress/DTXplorer/DTXtreme

Sorry for posting this to DTXpress forum; I sent this to Yamaha_DTX 
group but it seems dormant and I guess there are few members of this 
group who are actually using DTX V2.

Any help will be much appreciated.

Although I had my eye on DTX V2, price considerations forced me to 
order DTXPress instead. After a long wait (more than two months) my 
dealer informed me that my kit has arrived finally, but they did a 
big mess: The pads were there but the rack and the brain were 
missing! To cover their fault they offered me a DTX V2 brain and RS80 
rack in their show room; both were in mint condition so I accepted 
the offer. I guess I'm lucky after all :)

One problem is that they lost the manuals of DTX V2; I'll 
order them anyway. Without the manual I made some 
progress, but there are still some things that I could not achieve so 
I need your help.

Velocity Crossfade: I found where it is and how to set in on. But 
I couldn't figure how to set velocity ranges for different sounds. 
Say on snare, I want sound "X" to play from velocity 10-50 and "Y" 
from 40-90. How do I do it?

By the way, I heard that SoundDiver software supports DTX. Is anybody 
using it? Is it worth the price?

Thanks for your help in advance.

Okan