Well, I just read further on the subject and I guess Trillian might still work. Here's a thread. I guess the caveat is "must use at least the MSN Protocol v8."

This doesn't help for centerICQ, though, which friends of mine and I use quite a bit when we can't use msn directly on a machine. We just ssh to a server and use cicq to chat. I guess not after Oct 15th, though.

- trs