i am having this problem also. usb will not install with my 1.0 mp-7 on xp or win7 computers, whereas my 2.0 xl7 usb devices install correctly with two usb devices showing up as usual. the 1.0 mp7 only shows one usb device and it does not install properly and is not compatible with either of the included emu drivers
i hope it is due to it being 1.0 that the usb will not install and that it was updated in later os's(?). now i am more anxious to upgrade since i cannot use e-loader either without the usb installed. anyone else who can't upgrade the os still able to get the usb working?