facebook like button misbehaving

I added the like button easily, but after logging back in to finish editing my site, the button now appears in two places on my page and I can’t find the code to remove the incorrect one.
friendswhorun.org is my site and the button appears just above the photo on our front page (where I don’t want it) as well as at the bottom of the header (where I would rather have it).
Please help soon!!

http://wordpress.org/extend/plugins/facebook-like-button/