SIM (Simple Instant Messenger) 0.9.3

SIM supports AIM, ICQ, Jabber and MSN, sending and receiving SMS, server-side contact lists, sending and receiving messages in RTF-format, phone directories, file transfers, chat, user search, non-ICQ contacts, support for Miranda icon themes, floating, proxy support (SOCKS4, SOCKS5, HTTP, HTTPS), a SPAM filter, user encoding, secure direct connections with SIM and Licq, message or chat mode for the user window, keyboard shortcuts, message forwarding.

All protocol support richtext-messages, file transfer, typing notification, server-side contact list (with postponed synchronization - you can change contact list in offline mode and after log on all changes will be synchronized with server), new account registration, various searches and HTTP-polling.
You can use some accounts for each protocols.