Facebook "like" problem

I keep getting the following errors with the facebook debug and any time I “like” a blog post it shows the same url image and either my wp greet box content or related posts content…I am a newbie, please help! Thanks!!

Inferred Property: The ‘og:url’ property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property: The ‘og:title’ property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property: The ‘og:description’ property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property: The ‘og:image’ property should be explicitly provided, even if a value can be inferred from other tags.
Tiny og:image: All the images referenced by og:image must be at least 200px in both dimensions. Please check all the images with tag og:image in the given url and ensure that it meets the minimum specification.