Multiple site can visit.

I thought I followed the directions correctly to create a new installation of 3.5/.1 and adding multiple sites to one installation
my file structure is /www/wordpress/
/www/wordpress/site1
/www/wordpress/site2
apache has a alias WPF pointing to the the /www/wordpress folder.

however I can login as admin and edit the sites i created but if I try to visit site1 or site 2 (example.com/WPF/site2)I get the following in the browser page.

Index of /WPF/srvcenter
Name Last modified Size Description
___________________________________________________
Parent Directory
When I check the sub folders they are empty. Do I have to copy files into these folders? Or did I mess up the installation
Help Thanks