Ok - having driven a car that someone reset the TPS on, all I can say is find a throttle body with the TPS still sealed on it. Reason being that you will never get the setting right without the correct equipment - that being the reason why Honda seals the screws when they factory fit them. For me it was a case of spending the equivilent of US$50 and bolting a complete throttle/TPS unit on and I've never looked back.
BTW sbninja - TPS is on the throttle, not the dizzy
Cheers