Wacom tablet and OSx

I have a fairly ancient (circa 2001) wacom tablet with usb connection, which I've been using on my PC. I'm trying to get it to run on my G4 running OS 10.4. The original install disk doesn't want to know when I try installing, saying I must have OS 9.1 or later. The driver it's trying to install 4.5.1.
I've looked on the web and tried downloading/installing various later versions of the driver for OSx but the tablet will not run on any that I've tried.
Any suggestions please?

what is the exact model of tablet?

I've been trying to find a reference to it somewhere (I threw the box out years ago). I know it's Graphire, if that helps, and it's the smallest model of the range.

this link claims to work with the early tablets
http://mac.softpedia.com/get/Drivers/Wacom-Tablet-Driver-X.shtml

wacoms site seems to give support links to all its tablets

http://www.wacom.com/productsupport/select.cfm

The driver on that 1st link did the trick. Thank you very much, louishen.