No sweat

I am assuming that this is a PS/2 scrollwheel mouse, if for no other reason than that sems to be what most people use. If you are using something different please let me know.

Your mouse config is part of your XF86Config, so we need to
cd into /etc/X11 and make some changes. I use vi, but use whatever editor you like best. You will need to be root or su'd to root privi's to do this.

example:

cd /etc/X11; vi XF86Config

Your mouse settings are going to be about 1/3rd of the way down, unless you used YAST2 (Suse Linux) to create XF86Config.
You will see something like:

# Begin Input Device Mouse

At this point edit the mouse section to look like this.

# Begin Input Device Mouse

Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "imps/2"
Option "ButtonNumber" "5"
Option "InputFashion" "Mouse"
Option "ZAxisMapping" "4 5"
Option "Device" "/dev/psaux"

# End Input Device Mouse


Now just start/restart your X server and you should have a working scroll mouse in any application that was written to use one.

Hope this helped