Through another forum someone provided a great tool for re-organizing all of your MP3 files and making sure you have album images for them. It is called MediaMonkey,
http://www.mediamonkey.com/. Silly name but a great program. The software is free.
Only disadvantage is you have to pick each album, folder and sometimes track to find the right tags. This is a bit time consuming. However, it is nice to have the image appear on the Kenwood vs the standard no image available. That's the point of having one of these fancy receivers right? Many of my MP3's were ripped 10 years ago before some of the new features were available.
I also use Replay Music to record stuff. Great program while it is not free upgrades are.