Well, the email I sent to
webmaster@porn-in-web.com got sent back to me, so I found his domain server and informed them of the situation. Definately the way to go! I received an email from him within the hour--offering to either take down the copyrighted pictures or put my banner on the pages on his server. After explaining the concept of the "license" (I figure everyone deserves the benefit of the doubt once, after that they're either criminally stupid or stupidly criminal), I opted for the former. And included the url of this thread, explaining that there were a substantial number of notable webmasters who would be keenly interested in any sort of explanation he might have.
Thanks again for all the responses!
Lee/thrillho