Here is a site from Mayo that predicts your chances of being alive and disease free in 10 years. It was obtained by surveying some experts in the field. I think you will find the stats perhaps slightly better than you've seen before because they are look at if you were dx'd today, and 10 years vs. 5 years.
http://www.mayoclinic.com/invoke.cfm...7CDDA7&page=23
Unfortunately, it doesn't ask or consider her2.
Quick question for you - what made you stage IIIB? Notice you only had 3+ nodes, so was it tumor size or location? Just curious as I'm stage III as well (3C).