Write a web based chat program VERY EASY

Avg Bid (CAD)
Project Budget (CAD)
$30 - $250

Project Description:
I need someone to write me a super simple chat application like this:


There is a demo

I would like it exactly like that but with a few differences

No quote bubble on the chat
some anti spam filter? like 1 message every 5 seconds
some way to display how many users are online per page!
some word filter system or something like that. So I can block out stuff
need to be able to run more than 1 page without mixing up the chat users. So separate chats per page. I don't know how to word it.
You see that welcome message the demo has? I would like to make a custom one.
needs to be able to scale up and hold tons of clients. ex 100,000+
NO CHAT LOGS! The only logging I want is let's say someone says "turtle" I want it to log the message the said with their IP and time. Other then that no logging what so ever I need to be able to setup a list
It has to be efficient so minimal bandwidth usage
IP banning
I don't need a admin interface. a simple config file is good. no mysql or any db either. use flat or xml for storage.

I'd like the websocket server to be able to run on windows and linux.. If you can make it without it even better.

Skills required:
PHP, Software Architecture
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