Tips for the 3d onepage scolling effect theme



I’m looking for a themeforest tutorial. I’m designing my own website but I know nothing about that and I need some tips to help me going faster.
I took the 3D onepage scrolling effect. I started already to customize each page but I have some questionning about a couple of things I’d like to do and I don’t know how, or even if I can.

It seems that there are 8 different headers that I can choose. I don’t understand how I can choose the one I want.
Would like to put images on the first page and a link on each of them to a page of my site.
It’s a onepage website, how can I find the link of each page.

Anyone can help me ?

Thank you