That is true Happy Mongoose, whilst I'm not one with authority (I'm no guru, by bloody far) to advise which one of the two mentioned he should do, however I've been on gamedev before trying to learn game programming; I have learnt more about game programming with DBP in just over a month then I ever did at gamedev, so instead of leading Colin Hart astray, I believe that he should concentrate on the methods at and the concepts at gamedev, and not take to Hart (Pun intended) the code provided.
I hear and I forget. I see and I remember. I do and I understand.