Once again, in the vein that no one ever learnt anything from a compliment.
The layout is out all over and looks sloppy. Boxes don't line up, item headings have weird breaks, etc.
Lack of content - I'd be clicking away in a second. The lack of content will also hamper you should you try to PPC some traffic to your pages.
SEO wise, no page or folder names to help the search engines, no content for them to spider, etc.
Maybe consider adding a blog about the items you want to sell, rather than the bland item pages you already have. Unique user reviews, item details, etc will also do it the world of good.