Site Navigation

Hi, i was wondering how i get my index.php file frmo vBulletin to look like www.maloria.com

Right now my site is http://shinro.darknations.net/forums but i want the site navigation to be at http://shinro.darknations.net and the actual forums at http://shinro.darknations.net/forums just like [URL=“http://www.maloria.com”]www.maloria.com How do i do this?