unit 309 loads of help needed please

hi trying for the last few days and can't seem to get my head around this unit starting from k3d324 theorists onwards i have the books but when i go to write answer down i'm remembering what has been wrote in the book it's so frustrating and driving me around the bend any ideas help or suggestings are really appreciated. :-(

Hi,

I've sent you a private message about this.