I've never done it, but in my experience GoDaddy's GUI interfaces are pretty limiting so I'm not surprised. Maybe I'm old school but if I can't ssh into the server then it's useless to me. I also find that their curated versions of Apache and PHP have odd access restrictions that make using prepackaged software more difficult out of the box.
At a glance on their website, it looks like this could easily be hosted on a tiny LAMP server at AWS or a similar cloud provider.
If you're hosting a beer event, I bet there's someone involved with the right skills to get this set up in an hour or two at most. Just ask around for anyone with LAMP stack experience and they should be able to follow those instructions pretty easily. You could try having them resurrect the GoDaddy attempt, but if you're not out much money a fresh crack at it via AWS or Rackspace Cloud would probably get it done faster (and cheaper in the long run).