Kirupa1000 Pixel Patterns

http://www.k10k.net/frames.aspx?section=patterns

When it says:
“This pattern may be used for both commercial and non-commercial purposes (with a credit).”

What exactly does with a credit mean. I can’t really find a spot on the site I’m making where i could give credit… maybe someone could give me an example of a site that does this without it blemishing the site. Thanks!