i an not able to my k2 item images bring when i click fblike

hello,
i am not able to my k2 item images bring when i click fblike for particular k2 item pages.
see that link and click fblike "wearesurge.co.uk/index.php?option=com_k2...&id=273#.UJzGXWfmWYM"
here,display my site logo.not display my k2 item images.
please help me for that issue.
Regarding ,
m.