Mouse problems

[Boris Goldowsky]

Anyone know if the necessary configurations for scroll-wheel mouses have
changed with the new X version?

I have a microsoft intellimouse optical which is usb with a ps/2
adapter.  I used to use it as a PS/2 mouse in XFree86 with a setting
like this:

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "IMPS/2"
        Option      "Device" "/dev/psaux"
        Option      "Buttons" "7"
        Option      "ZAxisMapping" "6 7"
EndSection

And with that the scroll wheel and side buttons worked well.  But with
XOrg I have been unable to make that work - it does not see any mouse on
/dev/psaux (or any other device that I can locate - I tried /dev/mouse,
/dev/input/mice, etc).  I can get basic mousing to work with it plugged
in to a usb port, but that does not recognize the scrollwheel or extra
buttons.

Anyone have a mouse like this working, or can you give me any pointers? 
I did read README.mouse and look at the x.org site, but didn't find
anything helpful there.

Thanks -
Boris