TUTORIAL : put facebook like button at every post

dashboard > design > edit HTML *tick expand widget templates

press Ctrl + C and find this code 

data:post.body

put this facebook like button code under that code 

<em><iframe allowTransparency='true' expr:src='"http://www.facebook.com/plugins/like.php?href=" + data:post.url + "&amp;layout=standard&amp;show-faces=true&amp;width=530&amp;height=60&amp;action=like&amp;colorscheme=light"' frameborder='0' scrolling='no' style='border:none; overflow:hidden; width:530px; height:60px'/></em>

 preview first, the save :))