(And the Macromedia Flash plug-in for Linux is unusable. It works, but it grabs the audio device, and freezes Netscape until it gets it. Having to stop listening to your MP3s because there's a Flash ad on a page is just not acceptable, even for the leprous beggars who don't use Windows.)
Anyway, if you want to snarf it from a UNIX machine, the Designers Republic's free screen saver may be found here (for the Mac) or here (for Windows). (Cute URLs, guys...)