Copyrights regarding celebrity pics?

[Alphawolf]

I presume if you're active here you're probably pretty cautious on the legal stuff.

My presumption is that sites like this:

http://www.skins.be/top_celebs.php

...violate a bunch of copyrights.

But there are a lot of these sort of domains/sites around...not hard to find.

What is the scoop on snagging images like the site above and creating wall paper with your domain on it? I would presume this was outright stealing, but perhaps if one credits the source (?) it's OK or basically just overlooked?

TIA