Smarty or not, there's no difference in how you should implement the Like button. Hopefully the below explanation will get you on your way..
Since you're using the JFBCLike tag, you'll need to specify the specific URL of the page that is meant to be "Liked" when clicked. When that parameter isn't present, then the Like button will be for the 'current' page, which, if it's displayed in a blog view, will be the blog view layout page. To fix, when you add the tags to your article, simply add the final article-view destination URL of the article itself. We automatically do this in the Content plugin, but can't do it for the generic Like tag because that can be on any type of page (not just content), so we can't guess what the final canonical URL should be.
Example:
JFBCLike url=http://www.sourcecoast.com/extensions/jfbconnect/ layout=button_count show_faces=false width=150 action=like font=verdana colorscheme=light
The tag above, regardless of what page it's displayed on, will be a Like button for the JFBConnect product page.
Hope this helps, and good luck!