[PHP] PHP code critique

I'm new to PHP. I have been heavily modifying a webmail POP client written in PHP by someone else for my use. Anyway, I wrote the following administration script from scratch and if someone has time to critique my code that would be great. If I'm doing anything majorly wrong I'd like to know

Re: Re[2]: [PHP] Please help!!! Trying to write some chat script!

I whole-heartedly agree with this statement. There are several great Java clients (including IRC clients) for chatting, but I have never seen a server side scripting chat implementation worth anything. - Original Message - From: "Emile Bosch" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> S