You can download the full version of it from here.       This was to be the multiplayer part of the upcoming Return to Castle Wolfenstein expansion pack, but due to various problems with the singleplayer part of it, the expansion pack was eventually canceled.       However, they still decided to release the multiplayer part of it as a free, stand-alone download. -G
... and, as I'm well known for being bang up to date with techie stuff, I've just started playing My name on it is OldCodger or OldCodger1 and I'm usually on the Kernwaffe 1, 2 or 3 servers, the Prime 1 or 2 ones or sometimes the Alienz servers. Anyone fancying a game can look me up.
It's good, isn't it. I used to play it a bit 3 or 4 years ago but then had to reload my operating system, (I use linux), and never got around to reloading it. Most of the people are decent enough but there's always the odd dimwit. I've been having a problem with the punkbuster stuff which seems rather flakey to put it mildly. It doesn't allow me onto some servers with an 'unknown GUID' message which the other servers have no problem with? I'm up to about 2350 XP on the Kernwaffe servers. Do you still play?