I think my nephew has aspergers?

Maybe he does: There's no magic cure for Asperger's. I'm going to assume that Junior isn't just withdrawn and awkward because Dad's an ineffective model / teacher. Asperger's offers many advantages especially in the computer age. The key is getting guidance learning how to talk to people, read people, choosing a strength or endurance rather than coordination or ballgame sport, and achieving to be respected.