Although I know neither make nor model I think you might have some good chances of getting a good answer at the other forum I frequent:
http://forum.rscnet.org
Well I just found the manufacturers page, or atleast the company which has taken over interact:
http://www.speed-link.com/?act_lang=en
Unfortunatly there don't seem to be any drivers or manuals listed for such old products
I found something useful though in a driver update forum, which was taken from the interact site before it's adress pointed to speed link
"Under WindowsXP you no longer need a special driver, just select a six-button gamepad in the gamecontroller menu" (I guess that refers to the gaming devices in the system controls)
I also found something hopefully resembling a manual... I get a bar at the top of the site telling me to register, I don't know if you have to, to download this tho. OK I just checked, they want 2.99$ unless you're registered... so I guess you've got to register there and hope to get it free.
http://members.driverguide.com/drive...riverid=949458