Thanks for the link.
Trillian looks very interesting, lots of neat stuff and capabilities.
I couldn't find any technical info on their website, (brief scan), but will check it out later when I have more time. From what I could see, the API is probably built on the core msMessenger service, so it may be vulberable to the same exploits. I will check it out further and may use it. As I said in an earlier post, I don't IM much - just to my daughter (she's always got 3 or 4 IM windows open, lol). If it's good and also secure, I'll recommend it to her.