Thank you for trying our plugin. If you've visited our site, we always said we were and still are in beta.
We apologize for the gap in communication that led you to believe that we are a free plugin. We recently made the transition to being a paid service with a 30-day free trial, but it appears that our Joomla page was not updated accordingly. We offered a free plan until Jan 31, 2012, but don't anymore.
Thanks for your feedback and sorry for the trouble again.