I used Miranda with Jabber. First I used my ID on jabber.org. Since this regularly disconnected I tried moving to another Jabber server (jaim.at) with the result that I wasn't able to contact my old contacts on jabber.org.
But there was no problem with changing between my jabber.org and my jaim.at ID.
Now I set up the ICQ-Transporter with another Jabber client. When going online with Miranda the next time, all my ICQ contacts were added as Jabber contact, I went offline in ICQ was online in Jabber but my Jabber friends couldn't see me in Jabber.
When I try using my old jabber.org ID now Miranda tells me I'm online while I am not really online. When I try to add Jabber contacts I'll get a message "Could not start search on Jabber - is Jabber connected?"
What's wrong there?
I think Miranda is the slimest and fastest Jabber client but maybe it's still missing some Jabber functions. I don't know either where to turn off the ICQ Transport in Jabber.