I sell carpet tiles through my website. I recently added the Magento system to it. I have had approx 30 customers click on a product, and add to their cart as though they are going to purchase.

Problem is nobody has gone all the way through and paid so no sales. I can't see what the problem is. I've tested it and it works. All payments go through through paypal. Customers can either pay direct through paypal or with their card on paypal without registering. This is the shop; http://www.cheap-carpet-tiles.co.uk/store/index.php

If anyone can help, well thanks very much in advance. What am I missing or doing wrong?