All the tags available can be seen on the page below:
www.sourcecoast.com/jfbconnect/docs/conf...ation-guide?start=13
In your case, the problem is that you're missing the 's' at the end of JFBCComments. Once that's there, it should start working.
Also, please note that the Content Plugin can be used to automatically insert the comment box and like button to your articles, and is very configurable. I'm realizing now that our configuration guide for that feature is lacking a little now, and we'll update that soon. If you have any questions though, just let us know:
www.sourcecoast.com/jfbconnect/docs/conf...ation-guide?start=12
Thanks,
Alex