See my posts on the tech support section. It's relatively easy to wire any controller up for the neo, it's just a matter of putting it back together nicely.
Yeah man, check http://www.undertheneogeomoon.com , Bill has all the wiring diagrams and pinouts for wiring controllers. Some good tutorials there too.......
I have 2 connected to my mvs/supergun and with the ammount of grief they can take you would swear they had come straight from the arcades. (maybe that's why they're called arcade sticks,hehe)