So I'm in the process of setting up a new site. It just so happened that the 2.5 release of joomla coincided with this. We're going to build it on 2.5, but of course community builder 1.8 isn't out yet. On my test environment, I noticed that 1.7.1 installs fine on 2.5, but I got some rumblings that there were issues. What kind of issues are present here? If I was only going to set it up simply to facilitate back-end work (setting up user groups and access to sections based on that), then upgraded once 1.8 came around, should I anticipate any issues there?

Perfect, thanks!