Shopping Cart Visitors Don't Buy. Why?

Hi!
I need your thoughts on why my website visitors don't buy.
I created this website in May and have been having on average 30 visitors a day. Not one visitor made a purchase.
Statistics show that there have been 70 visits to shopping cart. If they went to shopping cart, why didn't they buy anything? I thought, well, maybe there is something wrong with the shopping cart. Bought something myself and it works just fine.
What's wrong?
My website [url:baf3b6e4]www.LuxuryFashionDeals.com
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Thank You

It's possible that they were just wanting to find out what the shipping charges were. I'd try adding a page with shipping information and as many fixed costs for different options listed as possible.