Help with .php files (please)

Ive noticed that the main page of this website is www.everquestserver.com/main.php. How did you get it to be a .php file, does that mean u have a database. Could someone post a guide here for idiots on how to do so cause im not exactly a computer nerd here or a computer guru. So any help would be greatly appreciated. I want to bring up a forum like yours I went to http://www.phpbb.com/support/documents.php?mode=install and tried to read on how to do it. Im guessing I just upload all the .php files into angelfire.com through there webshell. Then I type in www.angelfire.com/ex/linkups/install/install.php. Then it should run me through an install. Is this correct? I have dreamweaver, frontpage, microsoft word, flash mx, and fireworks. I'm pretty sure you can make your own forum in dreamweaver and I know its probobly gonna take a long time. But it would be worth the time when its finished.

BTW - Haecz dont post here. You seem to never help anyone.