I followed the instructions in the first post for my CTH-661 (bamboo fun pen and touch) on Karmic (2.6.31-20-generic). Needed to set the bottom x and y.
After setting, the touch used the fill size of the pad but if you move your finger faster is looses tracking... I assume this has to do with switching to gesture interpretation... Can this be adjusted?
After a reboot touch doesn't work. and I need to restart the driver with:
sudo modprobe -r wacom
sudo modprobe wacom
Please let me know if I can provide anything else to "help you help me"...