I think we're confusing the two here. Latezonatus (pictured above) are not the Madagascar clowns you're asking about. Latz are obtainable, you just have to know where/when to look for them. The latifasciatus, or commonly called the Madagascar clownfish, is not available, ever. I've been a clown collector for a few years now and know many people with the rarest of clowns and I've never heard of anybody with these. If you ever find them I would love to see some pics.
Good luck.