This is the author. He doesn't come here so no idea if he will get a PM:
http://www.nomorepanic.co.uk/member.php?u=32767
I would pose your question to Admin. I don't think there are many people still on the forum who have used it so not sure what kind of response you will get.
Nic might know.
Do you have a contact point for Robin Hall? He has another website for his therapy practice I can direct you to if not. He advertises the product on there too.