There's 2 main things that can cause the raw tags to display instead of the social module itself:
* The JFBCSystem plugin is not enabled. Make sure it is enabled, this is what converts the tags to the social module.
* The System - Cache plugin is enabled and ordered before (lower number) the JFBCSystem plugin. If so, move it's order to be after the JFBCSystem plugin and clear your Joomla cache.
If that's doesn't help fix the problem, just let us know!
Thanks,
Alex