SETI servers won't receive Work Units from the old kind of clients starting December 1rst. They (SETI I guess) developed a new kind of client and it wasn't available to OS/2 until now (just in time). You can download the port at:
http://os2power.dnsalias.com/yuri/download/seti2/
This is a first port and has some issues but at least OS/2 is not out of the game.
Thanks Yuri
Leonardo Pino
Source: OS2VOICE