Shoutbox

Have a read throug this thread, it outlines quite a lot and gives you an understanding (though not everything will relate to you)
Read first! Messenger Plus! Live FAQ

Also, it is good that you feel strongly about it but Patchou can only do so much with his time, you can't expect him to do everything instantly.  Just be patient, I'm sure that this feature is either going to be fixd up a bit by the Messenger team or it is going to be implemented back into plus.... eventually.