Update: 1:45PM
Found out you can connect to your Meebo account via the Jabber plug-in in Trillian. So now I can login to Trillian, and talk with the MeeboMe chat above. The one annoyance I found so far with doing it this way are all the 'add to contacts' requests. This trick also works with Gaim and Miranda (w/ plugin).
Update 1/24 8:35a:
Screenshot of a conversation with MeeboMe and Trillian:
