Centos 5.7 Box Link Replaced

The CentOS 5.7 box on the web page doesn't support puppet as a provisioner, and had broken DNS (someone's internal office network). I've repackaged a Vagrant for CentOS 5.7, pointed DNS to google's 8.8.4.4, and installed puppet 2.7 and facter - meaning puppet can be used as a provisioner with CentOS 5.7!