What do you think will happen if a prospect arrives at you bad designed website? They might hesitate to buy. One reason that they want to buy is because they trust you. If you have a poor website design, they might think that you are not professional, thus they will not trust you.

Change your website design, and you might see sales increase. Try adding images and videos to your website, because this will make it more attractive. You might want to consider putting some flash for your website. Don't forget to remember usability. It's useless to have beautiful design but the website is hard to use.