I jusst wanted to explain what I meant by that this hack isn't great security-wise. I don't mean this opens up a security hole into your server! What I meant was that you would not have to be particularly clever to figure out how to impersonate someone in the chat room. I need to update phpMyChat so that it uses the same login security as vBulletin. Once that is done then it will be as difficult to impersonate someone in the chat room as it would be to impersonate that same person on the board.