I own a Wacom Bamboo intuos 5 model PTK 450 and would like to know how I make it work on Ubuntu 11.10. I am a Linux newbie,so it would be wonderful to have a step-by-step answer
If you are a "Linux newbie", I suggest you to upgrade to the latest stable version of Ubuntu (12.04 Precise, a LTS version). After that, upgrade the kernel module that drives the Wacom tablet as mentioned in Wacom Bamboo Capture CTH-470 Pen and Touch not working. 11.10 Oneiric does not have a recent Xorg driver that supports your tablet, you really need the xserver-xorg-input-wacom package from Precise and later.
For advanced material and background, refer to http://ubuntuforums.org/showthread.php?t=1515562