> pretty sure it is illegal to reuse copyrighted
> photographs.

Yes, obviously.

> How do you feel about taking the income away from
> someone who makes a living off of design

I think there is a misunderstanding here. HTTrack is only a tool, (mis)used
(unfortunately) by a plagiarist. HTTrack has nothing to do with that.

> of DMCA and will be punished accordingly.

Yes. You may check examples of takedown notices (such as
<http://www.ipwatchdog.com/2009/07/06/sample-dmca-take-down-letter/id=4501/>),
and ask the copied destination hosting provider to remove the site.

By the way, if the infringer is as stupid as are most of these folks are, the
default HTTrack comment tag should be present in the sources of each HTML page
(at the beginning).