I may be able to help you on this one...
Have dive into visitorsstudio - http://www.visitorsstudio.org
This is something that href="http://www.furtherfield.org
">www.furtherfield.org created a while back now & it is regular being used by many creative from all over the world.
An online place for real-time, multi-user mixing, collaborative creation, many to many dialogue and networked performance and play.
Chat with other users while you upload and mix your sounds, images and movies in real-time.
just click the enter button.