trying to figure this out.

bear with me as I figure out what you all already know. big pictures and a blog page that actually doesn't make your eyes sick. I don't want to get too technical with this blog. I don't want it to be too fancy. Just trying to figure out how to have a side bar and a big picture. And how in the world do you make a different header? I'm sure there are options here on blogger, haven't figured it out yet though. :)