Installing a mouse
Connect the mouse to your machines serial port
Change to the /etc/X11 directory
Edit the file XF86Config
Look for the following in the file. If this does not exist, add it:
Section "Pointer"
Protocol "Microsoft"
Device "/dev/ttyS1"
BaudRate 1200
Emulate3Timeout 50
Emulate3Buttons
EndSection
Where ttyS1 is the serial port your mouse is connected to.