Hi Kojo,
I myself have had sucess using the paraliminal tapes,after using for the 1 time(the Get Around to it,Prosperity and New Behaviour Generator)and with each additional listening it enforces the change more permanent.
I guess you just have to keep an open mind on using the tapes(forget the training u have at the moment) and I believe if you follow instructions on the tapes,its easiler to follow and the change will definitely come.
Each individual has different beliefs within themselves and how strong the beliefs are in the person is also a factor to consider if you are measuring the change.
I hope that you can keep trying(and Alex's advice is right) and I believe you will experience the change u wanted soon 
Regards
Mage
