i do not have enough time for this kind of thing any more, but i need to make the ps2\ps3 usb guitar from guitar hero world tour work on the older games for ps2. currently it only works or is even recognized on GH: aerosmith and GH: world tour.

a simple fix to put you on the right track, or to at least get you started..
-we could find the driver file from the 2 games i mentioned earlier and simply overwrite the old file (NOTE: the world tour driver would have useless information for the other instruments)

-we could also create a disk similar to the Chinese import memory-card driver disks and load a driver before the game is even loaded. (hint hint RedOctane, Activision, Neversoft, Vicarious Visions, Budcat Creations, Machineworks Northwest, and Aspyr Media)