If you’re a UT forum member, it’s not hard to figure out where to download it. The community needs to keep reminding folks that it is still a PRE-alpha.
I keep hearing people asking “where’s the weekly alpha release?” The correct answer is that there is NO RELEASE DATE SET FOR THE ALPHA. You can however download the PRE-alpha (barebones, buggy and unstable) if you would like to contribute to the development by playing it and providing feedback in the forums. Okay, stepping off my soapbox now…
Note, there is now a Win32 release for you 3.68GB of RAM types.