Gink said:
OS Required: Microsoft Windows Vista / XP
I guess this stuff isn't compatible with Macs that don't have windows installed then.
Ever tried
http://www.usboverdrive.com/? Allows you to use any XP/Vista 'exclusive' USB device on OSX. Worked like a charm on my old Mac.
Edit: I used that even with standard mouses 'cause that app allows you to change all sorts of other settings as well, like the pointer acceleration and such. Was nice, because personally, I never got used to the default mouse acceleration of OSX, but if you've been a Mac user for life, then this probably is not a big deal for you.