Susan,
It takes a while to work your way through some of this stuff because it IS complicated, but see if you can get through the guidelines for breast cancer care. Come back here if you have trouble and ask any questions. It was very hard for me to decide to do chemo and I wish someone would have told me about the guidelines when I was trying to decide. Let me know if this doesn't work.
http://www.nccn.org/patients/patient.../3_work-up.asp
AlaskaAngel
P.S. look under the "decision tree" for stage I, II, III.