If your hub is the R10/R20 compatible hub, then yes. That would be the piece, and it should be fine for 9/10/11s Campy.

Shimano 10s cassette spacing is apparently less forgiving to Campagnolo than 11s.

ChainReaction seems to indicate that they sell a freehub for your wheels, so my guess is that is the one. If you don't see a model note on your hubs, you can ask them.

For that type of freehub, there is a fair amount of inter-compatibility in styles, as long as the axle size is right, although perhaps some minor differences in the pawls and ratchets.

Ahhh...
The page that oldnslow2 found lists the R20, so you're good to go