I have the images. In older version you can select add art work. Now it is Get art work and it doesn't let you add any art work that you may already have.
I don't think that's correct. Here's how to add artwork (I have a Mac):
1) Right-click on the album in iTunes and select "Get Info." A window, "Multiple Item Information," opens. One field is square, and is labeled "Artwork."
2) Find a jpg of the album cover; you can use Google Images, Amazon, iTunes, Organissimo, or wherever. You can even scan your own artwork.
3) Drag the jpg to the "Artwork" field, then hit OK.