PasswordMaker is a great software, but the tutorial is a high technic for end users. Actually, end users normally don't want to know the technic behind. We just want to know something like this..."If I want to do task A, then push bottom X", "If I want to do task B, then push bottom Y". As for why X or Y, and how X or Y works, those things can be expained in a separate doc in case anybody really wish to know.