Im not sure its AUT, i think it is in fact the new v3323 patch.... but then again i could be wrong, i installed both pretty close together, and didnt check the community tab until later.
But still, no reason to not install it, i mean, its not bad. I know Chaos has got a run file somewhere, and if not, in the readme there are instructions how to make an icon on desktop. IMO, thats the better way, having links to all your mods on desktop or in the start menu then having to wait for ut2004 to start, go to community, activate the mod, and then wait for that to activate too.