To do the things that you're looking for, you have to have knowledge in HTML and CSS.
You can't change these things from the admin view. As I told you before, this script is a bit of an advanced script.
But you can still learn. I started when I was 10(21 now. @.@), now I can code websites easily. Interestingly enough, I started learning html from neopets.
Try these tutorials to get an basic understanding of HTML and CSS. Then look at the template files, and change what you want.
http://www.w3schools.com/html/
http://www.w3schools.com/css/