Don't disable SSL, it's required for logon.
Try to turn the firewall off, and then take a go at it. See if it works. If that fails, try the newest AMSN CVS.
If all that fails, install GAIM, and see if the same happens. It likely will if it hasn't worked it, but it's worth a try. If all that fails, run game from the console, with debugging enabled: gaim -d
That will show you what happens when it tries to log you on. Note that I'm not sure if MSN pass = Hotmail pass anymore.
I have an MSN acct that doesn't have a hotmail account attached to it. I try to stay away from MS.