I guess it all depends on how "known major entry points, or principal URL" is defined.
"(d) A computer site or service or Web address containing a
digitally- or computer-manipulated image, digital image, or picture,
shall contain the required statement on its homepage, any known major
entry points, or principal URL (including the principal URL of a
subdomain)"
http://a257.g.akamaitech.net/7/257/2...5/05-10107.htm