Artwork Gofer lets you find artwork for your iTunes albums and e-books and add it to the albums' tracks or to the e-book. Select any number of tracks in iTunes, click the Search Artwork menu command from the iTunes Scripts menu and get the available artworks in the Artwork window of the Artwork Gofer application. Select a cover image that you like and click the Add Artwork button to add this cover image to the album's tracks or to the e-book. If for some reason an artwork was not found for an album, you always can alter the album's name and/or artist in the Artwork Gofer application (not in iTunes - iTunes remains unchanged) and search again.
Mac OS X 10.7
Mac OS X 10.6