[DiapDealer]

The image resources in that book are pretty messed up. I fixed the error dialog error that I inadvertently introduced with my changes to support both the Python 2 and the upcoming Python 3 versions of calibre. And I patched the kindleunpack core engine to test for cover thumbnail image indexes that are somehow out of range. I'll see about making that change permanent in the kindleunpack repository.

The bottom line is that even though you may have gotten the html unpacked, you might not have been getting all of the images from that book unpacked (and you still might not, given all the unrecognized image resources and sections not containing recognized resources that I see in the debug output).

Give this version a whirl on that book (same version number as the last test version ... sorry).

EDIT: Removed beta attachment since it's been incorporated in the official release (first page of the thread).