First up, I like the overall layout - the colours work great, navigation is fairly simple and the products easy to find.
Now the bad news. Because there is so little indexable text on each page the search engines don't have much to work with. You need to:
- Get rid of the image maps and use text navigation (or provide both).
- Write unique page titles and descriptions.
- Add some headers.
- Write more on page copy.
- Make your email address a 'mailto' link.
- Add larger images so customers can see the product details.
- Put your telephone number under each 'add to basket' with a message that they can call you to order directly.
- Write more content.
- Add 'alt' and 'title' tags to your images.
Each of the steps in themselves will only make a small difference but collectively they could catapault you up the rankings.
And you still need to change your whois record - it's got you down as a non trading individual.
A few ideas for you