Good to know someone can actually come straight with making a mistake and (wo)man up to it.
Tigermom, good to know there are people who can think straight... even after getting fucked up with their seminars. Im almost as sorry you went through that as I am that your child did from your mistake.
Unfortunately, anything you (or her, ESPECIALLY, they're much rougher on kids) "got out of them" as far as good feelings is just a pathological effect and is engineered to make you 'believe'.

You may want to consider exit counseling or some sort of therapy with a psychotherapist who understands brainwashing and cults... they'd probably be able to help you sort out a lot of your feelings. Your kid would benefit too, if she wants to persue that.
But, well, you seem to be getting your bearings about all of this. Fornits,
www.isaccorp.org, and googling about "large group awareness training" and other industry terms, buzzwords, and names, will give you all the information youd ever want to know, but its up to you to process it.
Nice to have you aboard. Just remember, the program is just engineered to make money and give the parents a "product" in the form of a stepford kid. Theres no good out of them - theyre not schools, they're not therapy, and they state bluntly that they're not if confronted. They just SEEM that way in borchures to suck people in before theyre convinced after "committing" to it their kid needs to stay there.
It boils down to sucking parents in, and after the 'commitment' and the ensuing psychological pressure to 'stick with it' (and the fact that they have your kid, a ton of money, and tell you they wont reutnr either...) and then convince you the kid needs to stay, and YOU need to be 'fixed' too. They're evil if such a thing as 'evil' exists and need to be wiped off the face of the earth.