mcgle,
I am about ready to leave for work so can't search for the studies right now, but there was some evidence presented at last year's San Antonio conference, I believe, that Herceptin was effective for a group of patients not strongly Her2+, which perplexed the researchers. When I get a chance, I'll add the link. Combined with the fact that there are women who are strongly Her2+ for whom Herceptin does not work, it just means that Her2+ isn't the be all and end all for who responds to Herceptin - there are other factors involved in response that remain undiscovered.
Here is a link to a NY Times article about it:
http://www.nytimes.com/2007/06/12/he...0Topics/Tumors
Nonethless, you have done splendidly, and have every reason for optimism for your future.
Hopeful