I have just installed the plug-in, then searched it in widgets and positioned it to my right column at the top, just between the "AddThis" widget (Fb, Tw, G+, mail, etc) and the "google search" widget.
I can see the whole FB widget perfectly with Likes, people's faces, etc as long as I am logged in as Admin of my website at the same time, but if I log-off from WP and reload the page of my site, as if I were a normal viewer/visitor to it, I don't see it anymore.
Bear in mind that I have saved the widget changes (even more than once, since I adjusted it's width various time till I reached the perfect one, which I could see clearly) and it doesn't show, once I log off, no matter the browser (I've tested it on both Firefox and IE)
What's going on and how can it be fixed?
Many thanks for your help and wisdom! :)