When using streamed chat, the javascript locks the send message field, rendering it unusable - one message can be sent and then its locked. This is seemignly due to a small bug in the javascript. IE6 reports an error (which i've attached a screenshot of).
I am not really up to speed with javascript, but I made a fix which does at least allow the streamed chat mode to be used, which i've attached. It unlocks the form, (but doesn't update the mesage screen - I haven't had a chance to get my head round the javascript). This way, streamed chat mode does at least work (rather than being broken not allowing you to post more than one message.
Dan