Forums/Message Boards

It has always been in my mind... That Forums is quite an important part of a website, especially for us kids. Haha. I've been looking for guides to make my own forum, I mean code and design them myself. It's hard and almost impossible to find any articles relating on this HOW TO MAKE A FORUM , and I think I should ask here..

So can you give me a simple guide on how to do these kinda stfff? I'm using and is quite used to ASP; HTML...I dunno. I think I should be able to understand.
Thanks for helping me out and giving me s shot. I think I'd rely on this board to get my work done well. Hehehe. Thanks again!