Emu XL-7 & MP-7 User's Group

I have a new Emu MP-7 hooked MIDI (probably incorrectly) to my 
Ensoniq ZR-76 keyboard. When i play the keys on the keyboard, i hear 
both the preset from the mp-7 that i want and also the note/sound 
from the keyboard. Is their a setting i am missing or something?/ I 
would like to hear the mp-7 sound only. Can i also record this mp-7 
sound into the sequencer and recorder of the zr-76 as a track 
also ?? Is their any good beginner MIDI sites out their that could 
help me figure out how to get my PC to recognize the MIDI signal 
from the mp7. I tried to upgrade to the new version with eloader but 
it wont recognize or communicate with each other.

thanks
Nick