From the ebay link, I'm only guessing as I can't read anything which isn't English.. I would say that is IS a Blacktop Zetec (136ps etc) but I can understand the confusion, as far as I was aware, the Duratec is just a re-named unit, so to be honest, I'm not sure that there is any difference at all..

Someone on here will know, try a post in the general discussion part of the forum too. It's viewed a lot more than this area!

Sorry I couldn't be more help..