From the announcement

"Web Security Dojo is a turnkey web application security lab with tools, targets, and training materials built into a Virtual Machine(VM). It is ideal for both self-instruction and training classes since everything is pre-configured and no external network connection is needed. All tools and targets are configured to use non-conflicting ports and a Firefox proxy switcher is set up to match."

"For a quick start grab the VM from http://dojo.mavensecurity.com and read the included Readme file and/or watch the intro video at http://www.youtube.com/watch?v=lum6bSsyJ38."