Missing purchased content.

I recently had to delete all of my songs and import them again because it was the quickest way to fix my "content not found" problem in iTunes rearranging my computer files.

It's all back to normal aside from my purchased content from the iTunes store. I can't find the downloads anywhere on my computer and there's no option to redownload them in the store. Am I just missing something really easy? Please help me figure it out!