Sorry for the delayed response. I'm honestly not sure what's happening on your site. The Pinterest Javascript is loading, which means that JFBConnect is detecting that the button is configured to display. The only time we prevent the button from showing is when there is no image that we can find to use for the Pin It button. Pinterest requires an image to be supplied for the button, which makes sense.
On your site though, there's no reason an image shouldn't be found, so I don't understand what's preventing the Pin It button from displaying.
If possible, I'd recommend waiting a few days for the upcoming v6.0 release of JFBConnect. We've made numerous changes to how the social widgets work, and it's possible those updates will fix the issue. If not, the 6.0 code is much cleaner and will be easier to debug if the problem persists.
So, if you can wait a few days, I'd say do that. If it's critically urgent to get the Pin It button working ASAP, let us know. We can try to get a solution sooner.
Thanks,
Alex