The "Community Builder" tab at the top was removed in 3.1 of JFBConnect and replaced by the Profiles tab, which shows any of the profile plugins you may have installed. So, it seems like what you're seeing is correct.
What page are you looking at in the configuration guide? I just flipped through it quickly and couldn't find an out of date image.. but I wouldn't be surprised

We'll fix it once we find it.
If you run into anything else, let us know!