As we all know, it IS possible to play Vice City using a controller, although optimizing it was an issue. PS2 controllers work and SOME Xbox 360 controllers work too. This patch will allow you to use most PS3 controllers. Including official wired and third party wired controllers.
Drag and drop the given gta_vc.set file into your VC user files. Then launch the game with your PS3 controller plugged in.