Yamaha DTXpress/DTXplorer/DTXtreme

hello, i am francisco lacerda and i am a new member of this forum. i am 
sorry to be bothering you with questions you have read a thousand 
times. 
i am trying to connect the dtxpress III module to the pc via usb-midi-
in-midi-out cable and i am trying to connect it to cubase sx or live 6  
to triger samples or midi sounds but i have never get any sound of it. 
i have try everything and even read almost every post of this news 
group but i came to no conclusion. 
what happen to me is that the cubase sx and live 6 don�t recognise the 
module. i have already install the yamaha cbx drivers, put the module 
in pc1 option, assingn channel 10, etc,etc. in live, the cbx drivers 
happears and i assign it to the in and out possibilities but it doesn�t 
recognise it. when i try to map the midi is doesn�t let me. in cubase 
sx... well i cannot do it also because i don�t know how. i have a sonar 
5 copy and i am going to try on it but if i can�t get tp recognise it 
in the other two it seems i will fail again. i am also new to midi 
external devices. already bought a book about midi but nothing.

am i missing something? is there any step by step tutorial that can 
help?
i am trying this because i need lunch some samples or midi at my live 
gig with my band. i have been using a sequencer and a click track but 
my band members complane that this is not organic and when i miss any 
time... it�s a disgrace. 

please, help me!!!!!

thanks for all, big cheers