Multiplayer replication of non-player entities.

A tutorial or "Quest" explaining how to properly replicate the position and rotation of a non-player entity would be extremely helpful. Essentially, how to add an accurately replicated sphere to the multiplayer demo that all players can kick around. I'm struggling with modifying the network packages to include the position of the "gameball" as it exists on the server and adjusting the "gameball" location on the clients accordingly. I'm left with my closest attempt resulting in a ball that is visible by both server and client, but does not replicate it's position...

P.S. - Guilherme, you are doing the indie-dev community a huge service with this site, as well as Cave. Awesome work, much appreciated! God is great!