Hey MuleyMan do you have one of those Atari sticks and need the driver or are just suspicious cause you don't see any drivers?
The guy at this link seems to discuss that and says that he uses the "HID" standard to tell the PC what the device is... kinda like a mouse works without disks (ya throw that Logitech disc out).
http://www.raphnet.net/electronique/atari_usb/index_en.phpMaybe he is setting it up to say "I'm a keyboard" and when I press up I say "some letter" and down "some other letter" etc... in which case you figure out which letter is which and you setup PM to use those keys...
If those things work I may need to buy some for my buddies and I.