Trouble with facebook addon...

Hello,
I have just added the face book like button add on to my product pages. It works and posts through to facebook, however on my site, next to the button it says... The page failed to provide a valid list of administrators. It needs to specify the administrators using either a "fb:app_id" meta tag, or using a "fb:admins" meta tag to specify a comma-delimited list of Facebook users.
Does anyone know what I have done wrong?

Also, I added the pinterest one before it, as soon as I added the facebook one, it over wrote it and it disappeared? Do you know what I need to do to keep them both?

1 more thing! I was thinking I would like the "like" buttons to appear next to the write review button on each product. I am not sure what part of the code to change.

Thank you
Amy

The facebook error is now fixed, however I am having trouble with pinterest button still and i would still like to move the buttons. Any ideas???

Thanks
a

Any ideas???

Thanks
A