Hi.
I've tried mobi2html (latest 0.0.26 - on debian sid) with Polish
www.ebook.pl free books. I've always got empty html file (with main markups - html and body) and one gif file (I've checked - it is a cover).
Every book can be open in Mobipocket reader without any trouble.
As an example you can try:
http://ebook.pl/ebooki/Classic_000248.prc
Can someone tell me what I'm doing wrong?