Don't know if there's some way of doing it from within WMP.
But you could try going into the folders where the ripped music is on your PC. For each album / track (depending on how you have your music organised), you'll see 3 Album Art jpg files.
You could copy the jpg files that you want to see into the folders of the albums / tracks that you want to see those covers with. In doing so, you may need to rename the files to be the same names as the ones that are already in the target (copy to) folders.