I currently have a chat room here http://bit.ly/ao8xl8
What I need doing is instead of a number increase as a person enters I need it so that the Guest would show the last octet of the IP. For instance instead of Guest578 it would show as Guest(Then the last octect of IP). If there are two people with the same octet then I would suggest getting round this by adding a . to one. I would not need any other changes to the script other than that.
If you take a look at the room you will see what I mean.