ExpectAMiracle,
Here are links to the Oct. 20, 2005 issue of the New England Journal of Medicine reporting on the results of the HERA (European) trial and the North American Trials. Have your doctor read the eligibility criteria for enrollment in these trials; based on the pathology you posted, you could have been eligibile for any of them:
http://content.nejm.org/cgi/content/full/353/16/1673
http://content.nejm.org/cgi/content/full/353/16/1659
Finally, here is a link to a medscape article that discusses the benefit of Herceptin in node negative patients:
http://www.medscape.com/viewarticle/545591_2
My heart breaks for you. Hang in there, and get opinions from more than one doctor. There is no reason for you to be denied this drug that I can see based on current clinical practice. You may have to go through appeals with your insurance company, but don't stop fighting. Best of luck to you.
Hopeful