When loading the latest driver for it from Wacoms site, be sure to change the compatibility on the EXE file to "Windows 7". If that doesn't work, you will need to look at purchasing a newer model. The CTL-460 Wacom Bamboo Pen Tablet was only compatible with XP and Windows 7. Newer Microsoft operating systems are not supported on that product from Wacom.
You can buy them new from places like Amazon or directly from Wacom. Just to confuse you more-- it used to be Bamboo, Intuos, and Cintiq. Now the entry level tablets are the Intuos, the mid-level has become the Intuos Pro, and then the Cintiq.
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=wacom+bamboo
https://store.wacom.com/us/intuos-pen-touch/