I am working on a client's site, and she has a wp plugin that she and I don't like (WP Shopping Cart from http://www.getshopped.org/)

This plugin creates her pages for her, and it's not very friendly: she can only put a small amount of text, the images are really small, and lined to a much larger image, etc.

Is there a way to create the pages as usual, and just add a buy button to handle the buying process? Is there a plugin for that?

If anyone has any examples of working websites, I'd love to take a look.

I need help with this ASAP, please.