Write Page Problems

Hello, I’m looking to write a new page on my site, http://www.gunnerblog.com. I would like to create a page that is basically of the same format as my main page. However, when I try and write a page, it only offers me a very plain template, a basic archives template, or a basic contact template.

Is there anyway I can replicate the main page code?

I am a real novice, any help appreciated.