Here is a link to an article about it.
I am not sure which program she is using, but I think it is so cool that she is using hypnosis for childbirth. Maybe now more moms will be aware that is even a choice!
There are a lot of different programs out there, here are some options for study.
Enjoy Birth's Old Blog :) 
hey! thanx for visiting! i LUV hearing good birthy stuff from well known people. it’s so rare these days tho, that is good news.