If someone did a fake Vogue cover, I would think they're risking trademark infringement. If someone takes a part of a photo from a magazine and chops it up to use in a posting here without permission or license to do so, they are definitely infringing copyright. There's not really any grey area in there to quibble about or attempt to defend, especially since the image was being used for product promotion. There is a handy post about these issues here: http://www.renderosity.com/news.php?viewStory=6249

-D
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It's all fun and games until someone loses an eye texture.