I say try taking it up the SCO managment chain see if u can better results from a manager or owner. Also try to document the names of the people you talk to so you can pin the blame on an actual person. Failing that, slag the SCO name on every forum that you're a member of (and maybe copy the links to SCO) to see if you can leverage them into action.
or talk to a lawyer, maybe
btw, what/who is SCO? nvm its in the title