PHP / MySQL Message Board

Ok first off I'm new to using PHP and MySQL so I still have very little idea of what I am doing.

For my BTEC National Diploma in Computer Studies I am doing an assignment where I am pretty much allowed to do what I like, so I am making a message board in PHP / MySQL. I wrote out my spec and got a message board made and working (basically changing the code of an existing message board), the one thing I am having problems with is creating an option where you can login as the adminstrator and an 'Edit' and 'Delete' link become available, and they do what their name suggests.

If you go to this address http://www.webblokey.blindstorm.com you will see a link to my message board, here you can see what it currently is like. There is also a link to an uploader, if you go onto this and choose the 'Directory Listing' you can see the files used for the message board, you can download these to your hard drive from here (right-click, 'Save target as').

I was also trying to allow certain HTML commands to be used on posts, as well as making the reply page separate to the the viewing of messages (instead of appearing below where you view the message like it does at present). It doesn't matter if none of these are included but I would like to if it is possible.

If anyone has the time and is willing to help me please do. It is all there for you to download and fiddle with, and if you do sort it please E-Mail me to let me know what I need to do (or if you're really generous with the updated files). Thank you again. (Dislike_Derek@hotmail.com)