I was reading some other threads here and found a suggestion you had made previously to someone else - I ran a windows joystick test program, and it is seeing the guitar controller and responds accordingly. If it works with one application and not another, does that definitively place the issue with the 2nd application? Seems so to me, but I know nothing about how wine works. Going to work on it from another angle with native libs and see how that goes, it got the game running in the first place.
