Adb-usb

I own a mac [w00t], and for it i bought a pen tablet pad. (made by WACOM)…for like drawing in photoshop and such…it uses a ADB connector to connect to my mac, and the driver disk that came with it has installation drivers for ADB and USB (but for some reason it did not come with a USB connection)…however, i just sold the tablet pad to a windows user, and he does not have an ADB connection, so what i’m asking is, do any of you guys know where i could get a converter for ADB-USB so that he can use this pad through the USB slot in his WINDOWS pc?

Please dont say radioshack, that dont have them, and the WACOM site doesnt carry replacement parts for my pad anymore…

EDIT-Im sorry if this should’ve gone in the PC forum, please move it if should…

get an iMate

http://www.griffintechnology.com/products/imate/index.html