Journal

A copyright question.

HI all,
Recently I took some photos (as a favour) at an exhibition opening. I supplied the photos to the artists with a copyright notice on the CD, name, details etc.
A few of the photos are going to be printed in a commercial publication.
I told the artist to go ahead and pass the photos on to the publishers together with the copyright notice and my details.
The question is:
Did I do the right thing? I would expect to be paid by the publishers of this Australia-wide, quite popular monthly, but I am not sure if they can just say that they got the pics from the artist and therefore a release to print?

Should I expect the publishers to contact me before printing, considering they have my name, contact AND the copyright notice?

Anyone with commercial experience, your help will be appreciated.

BC