Jabber, you ask good questions -- ones that I am sure a lot of our readers are also asking.

As far as I can tell -- and the answers are still sort of murky for me -- HRT, hormone replacement therapy, has been vindicated in YOUNGER post-menopausal women. But is still a concern for women beyond that stage...

As I recall, NABBW did a teleseminar on this topic roughly 18 months ago, with a woman doctor - a gynocologist. I've temporarily forgotten her name, but I will look up her event and post a link to it again.

Meanwhile, here is a link from About.com's Heart Health Center, which provides some 3rd party answers related to HRT and heart health -- though not related to cancer.

I'll do some more research to see if I can find anything about HRT and cancer and post below...
Boomer in Chief of Boomer Women Speak and the National Association of Baby Boomer Women.