Currently Being ModeratedFeb 9, 2013 2:20 PM (in response to Rick Mansfield)
This *should* work, but it was very buggy under iOS 6. For me anyway, it's working fine under 6.1. Once it started working, I added artwork for dozens of albums, and they all worked fine.
The artwork often doesn't appear until you play a song the first time, and it sometimes takes up to a minute before it shows up.