Hi,
I've got a logitech optical wheel mouse, running on Mandrake.
To get the wheel to work properly I configured the mouse as a "Generic PS2 Wheel mouse" using mouseconfig.
The pointer section of my XF86Config file looks like the following:
# **********************************************************************
# Pointer section
# **********************************************************************
Section "Pointer"
Protocol "IMPS/2"
Device "/dev/mouse"
ZAxisMapping 4 5
Buttons "5"
EndSection
# **********************************************************************
Hope this helps with your mouse.
Andy H