Scott Wilson , Jun 07, 2009; 05:30 p.m.
I would think a published work would be one printed in a book, magazine, journal or newspaper.
Selling a photo is not the same as having it published, IMO.
In your first case where you don’t know what they did with the photo(s) I would say you don’t know if they were published i.e. the fact that they might be published is not the same as being published.