[Plugin: wpStoreCart] Need Help Adjusting the Look of the Product Page

How can I override wpStoreCart’s presets for placement of additional images (gallery) and text? The presets (directly after thumbnail, directly after add to cart, directly after the intro, and after description) are not working well. The gallery image is currently below but to the right of the product image and there’s a large negative space below the product. It doesn’t look right.

PLUS the text for the description is not aligned with the title, price, etc.; there should be more leading between the category options so that the boxes aren’t slammed up against each other; and the word “Comments” should not be aligned at the bottom, left of the comment box.

If this is CSS, please give me the style names. If PHP, please tell me the files and lines.

I have to fix these eyesores.

http://wordpress.org/extend/plugins/wpstorecart/