Pardon my ignorance, but that's Dux? It sounds like it's a mod of some sort, but I confess I haven't heard of it.
It's a MP mod, you can see the sticky in the Jousting Fields forum if you 're interested in some serious online playing;)
(And should you say you don't play MP due to the usual reasons, look at Tosa: he abandoned his Admin post in order to be able to play more often online:p).