I was browsing through instabloke and in it I came across a link which contains a very good explanation of a non beta blogger template. If one wishes to learn blog hacking, one must know thy template well. I recommend you go through this article to learn more.
The writer(s) have actually use a picture of a sample blog and provided each section of the blog with its relevant CSS and HTML code. In addition, I also like their blog's design and certain page elements. Good work done by the author(s)!