Try this bro,check out the Ebay site and search for the ACTION REPLAY products for the XBOX and see what they have to offer some are priced fairley cheap and since Datel is no longer selling them its your only and best chance of getting you hands on one.
If you're really serious in wanting to get those files for the original XBOX check them out.
I recently purchased an ACTION REPLAY MAX system for a cheap (IMO) price of only 25 bucks.
I had one years ago but misplaced my memory card but still had it installed on my pc and going out to store vendors was a frustrating and painful effort since no one sells them anymore, best shot online vendors like Ebay or Amazon then again you can always seek other online vendors by searching the web via a simple search.
If you had an XBOX 360 its possible to convert files to play on the XBOX.
Your best chance of getting an XBOX roster complete is downloading the file and tranfering it via an ACTION REPLAY device.
On a simular note there is a vendor there who has a repair service for the original XBOX system so search and you'll find him there.
Keeping It Real
Rickster101