Here is how to enable the pen on a Fujitsu 5020D Tablet PC
download tcl-8.4.13-i486-2.tgz and tk-8.4.13-i486-1.tgz to your desktop
select install packages from the current directory
select ok on the tcl package
wait and it will ask to install tk when tcl is finished
download linuxwacom-0.7.8-3.tar.bz2 to desktop
add this line
setserial /dev/ttyS0 port 0x0220 irq 4 autoconfigure
save and exit
now youre allmost done you will need to modify your xorg.conf file yourself but once you get it done your pen should work. the next post will be a copy of my xorg.conf to help you along.
your xorg.conf file is located at etc/X11/
so you will need to "nano /etc/X11/xorg.conf"