We've just changed the chatroom.
Just click on the button which says "Chat" on the Navigation Bar and Chat will open in another tab. Login in and chat away. It works with mobile phones and tablets, and you can download an app to keep chatting on the go if you really want.
I'm hoping to install the ability to upload files, play Youtube videos send voice messages etc., but that's in the near future.
Please contact me if you can help me test Chat. So far it's just me and I've heard all my jokes!