Sorry - been very, very busy at work so not had the time required to get it all sorted out.
I want to get a chatroom that is remotely hosted because the hosted one I used last year used up a lot of server resources, making the board very slow. I also want to tie it into the NSC vBulletin instance for authentication so that people use their NSC user IDs in the chatroom too. This stops the arsing about that happens with anonymous chatrooms.
However, as Russ said - might be best to use the old old chatroom until I'm able to get it sorted: