I do not allow Direct Linking / Hot Linking images, if you'd like to use them, you'll need to save them onto your computer and upload them to your webserver. Don't have one? I recommend Photo Bucket.
Many of these backgrounds have DiaryLand Templates or Webpage Sets that go with them. Check those pages out as well if you need inspiration on what to do with them.
By popular demand: If you see on a background, click on it and you will get a page with colour suggestions for use with that background.