Facebook applications function does not work

I do not know what I'm doing wrong, but I do not get Facebook app to work. I have written in the correct Facebook appID, but I still do not app to work. Is there anything I missed?
In previous versions out CuteNews so has Facebook application worked just fine anywhere. But the update does not work on all. I do not even get the "Like" feature, though I have been told that I want it enabled.

Is it so that I may have missed that ticked something in or under the "General" tab in the System Configuration? I think I have checked and checked, but from how I behave so I do not get Facebook app to work.

So my question is, what have I missed?