Check your playlists for "Purchased music" to make sure it's there. If it is, you're probably just looking for the wrong ID3 information in the browser.
The topic title has caused me to enter a long series of confusion and misunderstanding. With the avid love for typos as actual words or jokes in geekdom, or just present to plain redicule idiocy, I couldn't figure out of the true meaning of carp. Is it a legitimate typo, or a joke like GAF am crying? I am sorry sp0rsk, but I am very much confused.