If you have some time i'd suggest reading the Acknex User Magazines and GameStudio manual too. There are almost 80 AUM's and you get source code all for free, but back to your question: Be more specific about what you do not understand or like someone to explain; For now I can only tell that you start using the workshops by sitting down with a nice cool drink nearby and going trough all of them step by step. Along the way you become more and confident and learn many new things. Have fun!