I reapplied the facebook behaviour to the page and this time I entered in the direct product page so in internet explorer if you right click on view source code and look at the code on line 449 it reads:
<fb:like href="http://www.dinkyfingerprint.co.uk/products.php?dinky=product-detail&result=96" send="false" layout="standard" width="450" show_faces="false" action="plugins/functions/like" colorscheme="light" font=""></fb:like>
but it still doesn't display anything, I even tried IE7, IE8, I9 and Google Chrome.
This problem is only occurring on this page since the facebook code is in plu_products.php and that's a framework builder static plug that's being loaded in products.php (the products.php file is in root directory) and the plg_products.php file is in the folder plugins which is a folder in the root of the hosting. Could that be the reason why its not displaying? as this same code works fine in php files that are stored in the root.