Editting the product box

[magicspon]

Hi,

 

How do i change the way that the products are listed and how do i edit the box which each product is in?

 

I would like to have two column of products.

 

Also how do i change the width of the shopping cart box. I've changed the boxes/shopping_cart.php file so that it is 140px wide. However when i add a product to the shopping cart the box is stretched.

 

thanks

dave