I commited the code that integrates our multi-protocol group chat into SIP
Communicator.
Now you can create a chat room in SC, invite your F2F-capable friends to
this chat room and start a job from this chat window (there is F2F button in
the toolbar; if the chat creator clicks this button, the job submission
dialog is opened).
Try it and let me know, if you encounter any problem.
Cheers,
Keio