I don't know if past life regression or future life progression works, but the superconscious mind tap alone is more than worth the price of admission.
I started practicing the advice in this book around the time I started seeing a psychologist to deal with a traumatic experience in my life. It was a personal experience, and the psychologist just couldn't understand what I went through... It was the kind of personalized trauma that I really can't share with anyone else, not even a friend, let alone a professional.
The psychologist worked in tandem with a psychiatrist that practically tried to force me into taking medication that made me feel sick. (He also made ridiculous claims about how meditation, diet, and exercise wouldn't help my problems--that medication was the only cure.)
I refused taking the medication after trying it for a week.
With the advice in the book, I haven't been able to forget about the bad experiences in my life, but I have been able to foster some emotional detachment towards them. It helped. "New Age Hypnosis" also explained the basics of meditation and hypnosis better than any other book I skimmed through at the bookstore.
Granted, there are some far fetched ideas contained within the pages of this manual, but not every piece of advice given is so "out there".
In short, if you read this book expecting to see the future within a day of practice, you'll probably be disappointed. If you take what you can find useful, and diligently apply it for a month or two, you'll probably find the self mastery attained easily worth the $13 price of admission.