i didn't think there was any difference at all with the earlier computers.. i only changed mine at the time because i had it and at the time i thought ya would have to..
also if i could just get a 5speed (mate has a wrecked vp s1) what other parts would i need, iv seen these threads but couldnt find them, also is there any mayjor difference between the vp-vp gearbox's etc if i wanna put one in...