I have implemented Facebook Open Graph Protocol Full Integration following the Facebook developers site and here http://www.websitedesign411.com/blog/facebook-open-graph-protocol-full-integration-walkthrough.
I got the Facebook Like Buttons to show here http://giantmango.com/news using
<fb:like href="<?php the_permalink() ?>" layout="button_count" show_faces="false" width="200" action="like" colorscheme="light"></fb:like>
On the same domain, I am using the exact code, but on a different theme and the Facebook Like Buttons are not showing here http://giantmango.com/testartwork-2237
Any ideas on how to solve this problem would help very much.
It looks like you are missing your Facebook javascript initialization code.
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: 'your app id', status: true, cookie: true,
xfbml: true});
};
(function() {
var e = document.createElement('script'); e.async = true;
e.src = document.location.protocol +
'//connect.facebook.net/en_US/all.js';
document.getElementById('fb-root').appendChild(e);
}());
</script>