I use the msn chat feature on my blackberry perl and love it. I haven't found anything that can do what you want, and I have looked. But I am going to follow this thread just in case someone does know.
Sorry I've not been around much.
Anyways, I seem to be using MSN Messenger more and more these days on my smart-phone and was wondering if there are any third party applications that would allow me to use file transfer via msn as the unavailability of the feature from Microsoft seems to be quite a problem.