Images not showing up correctly on LG

So, I've gotten all my album covers loaded in the app. They all look fine on my computer. Then I port them over to my LG phone, and... all of the images are the same. What?!
I know people have asked about this topic before, but I'm having a really hard time with it. People have talked about an "images.jpg" folder and all sorts of other things... to be honest, I have no idea what to do.
Any help would be appreciated. Thanks!

have a look at this thread:

Thanks. The issue might be with albums, as most of my music I didn't bother putting in an album name. All of the songs with album names and not just "music" had their correct cover art. I'll have to try fixing it sometime this afternoon.