Daniel's obviously having a bad day at the office!
What he means is, you need to learn how to program in C++ BEFORE starting on T2 AGK. You could also learn Object Pascal, which is IMHO somewhat simpler to grasp.
If you are an experienced C++ or Pascal programmer then T2 gives you access to a universe of powerful things, but those things are not AppGameKit itself. If you are new to programming it might be better to stay within the T1 landscape, which has been designed to protect you from the nightmares of null pointers, list over-runs, constructors and destructors and so on.
I hope that's a fair summary.
-- Jim DO IT FASTER, EASIER AND BETTER WITH AppGameKit FOR PASCAL