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

I'm using Windows 2000 and the MP7 is connected througt Edirol UM-1 
to computer (Midi IN and A OUT).
e-loader recognizes the mp7 if i test it, midi monitor gets messages 
from it, and it "sees" all the patterns in MP7..but, when i try to 
save my patterns, it thinks for a sec and then tells that "there was 
an error..blahblah"... what could be the problem? and how do i use 
the USB-connection?, when i insert it, it sees USB composite device 
and asks for a driver (which should'nt be needed?) and then takes the 
device out of current configuration because the driver does not 
exist...
if i remember correctly, i did get them out using Win98 SE..
does any1 else use win2000 with e-loader?