the original ToS is posted partly in post #4
either way, they have licensing rights so they can use your images as they choose...even receiving money from another party to use them, just like if you sold an image to a company for its ads. you would retain the original copyright as the artist if you dealt directly with that company. facebook treats you images as if you sold them the rights of use already.
but you get no money. and facebook becomes the licensee of the photos as if you sold them to istockphoto or some other stock site.