I am not sure what you are talking about. I have the tab to groups in my profiles, however, after setting up categories, and groups and assigning groups, the groups still do not show up. I know you said you have checked it on my site, but I am still confused because when I login to the front end and click on groups, my group does not show up (the one I assigned myself to in the backend.)
I also synchronized users and my new user did not show up in my groups(backend)
I know what the groups are for and I assure you I want to use GroupJive correctly.