Update Theme

This is our first year using Fabulous Fluid Pro. We would like to update to the latest version but there does not appear to be any way of downloading the latest version for free. Please advise how we may download the latest version. The slider on the main page is showing the OLDEST posts instead of the LATEST posts. We are hoping the newest version will fix issue. http://blogs.rochester.edu/thegreendandelion/ Thank you for your help