Thats really bad, but Google duplicate filter works like this:
Site A with some
PR and importance make a content, spider get that content an publish to db.
Site B with less or nothing of
PR and importance copy that content entirely, spider get the content and verify thats really exists, penalization its apply to B site.
But if Site B its really more important than Site A, the spider maybe can visit this site before the real content creator (Site A) and think B its the real owner, then, penalize Site A
, this is the real problem with start sites copied from older sites.
If your copier don't have a real important site, don't worry, google generally give more importance to the first publisher of content and penalize others mirrors.
"Your search - site: xxx://casinoscafe.net/ - did not match any documents."
So I think this site are not indexed yet by google, and will be penalized for duplicate content.
Good luck.