Apache with phusion passenger virtual host problem

Hello, I've recently setup a new linode with Rails, apache2, and passenger but I'm having a problem with getting the right sites to load. I've got 5 domains in my apache2 sites-enabled folder, if I a2ensite all 5 and try to browse to each domain, all 5 domains load up the index.html file from the first site in alphabetical order. If I a2dissite site a, all domains load site b and it continues until I only have one left. I'm guessing I've screwed up the virtual host file somehow, but I copied it straight from the install guide.

ServerName www.filmgrounds.com

DocumentRoot /srv/www/filmgrounds.com/filmgrounds/public

Any ideas where I've gone wrong? Thanks