Clone a Sidebox?

I need to clone a sidebox(Manufacturers) and convert it to a center box and place it below my other centerbox that i have on my main page.

I managed to clone the side box by copying files and renaming them and i placed the cloned manufacturer sidebox right above my current centerbox "New Products For Month".

I just cant figure out how to separate the cloned side box from the original. So that when i go and make .css changes they both wont change.

Also i need to make the width match the other centerboxes and i cant figure out what is making the "New product for Month" box display horizontally across the main page/index.

Here is my site so you cansee. I have newest version of zen.
http://www.midamericasportz.com/zencart

open your cloned files

look for:
.leftBoxContainer
#Content .centeredContent

rename them, this way you can alter .css file for the newly cloned box only.

hope this helps?