How to get artwork to display properly and have chapters on podcasts?

Hi there. I have a podcast series I download called Aural Pleasures... They are DJ mixes which are made using GarageBand. They are chaptered and have different artwork for each song in the mix (each chapter). In iTunes on my Mac, as well as on my iPhone, the chapter artwork displays properly. On the iPad 2, however the artwork stays the same for the entire podcast.

Is this the intended layout for iPads? Why is it different than the iPhone and Mac?