Some months ago I got an email from a Japanese magazine requesting permission to include some of my skins. The mag was 'Windows 100%'.
I said 'OK', provided they sent me a copy of the mag.
Today, postie arrived....issue 11, and there on page 53 was my WMP skin, properly credited to me, along with several others' WMP skins.
Included with the mag are 2 cd's....I'll check 'em out to see what's there....but from what dealings I have had with them so far, I'd say that you should have no qualms about consenting to having your work included on their magazine.
Now, if only I could read Japanese....