IIS Problems

Im trying to install phpbb on my web server. I have php installed and can view .php files when they're in the wwwroot folder but when I try to view one in wwwroot/phpbb2 or any sub folders of that I get an Internet Explorer error: "You are not authorized to view this page." What gives? I have anonymous authentication enabled in IIS. Any help would be great

Hi.
Did you change it to the web folder?
Go to Computer management/Services and Applications/Internet Information SErvices/Web Sites.
Right click on a folder/Properties. In Direcotry Tab if Application name: is grayed out click on Create button.