Keep It Simple (KIS)
Top right, you've got the header "Best Sellers" then an ad below, then a search box, then the heading "Top 10 Favorite Picks". It doesn't make sense, where are the Best Sellers????
Customer testimonials have no name or general address details e.g. State.
Be consistent. Text links should be in blue and preferably underlined (The left-hand side box is black text underlined). In the words of Steve Krug
"Don't Make Me Think" (get the book and read it and also anything by Jakob Nielsen
useit.com: Jakob Nielsen on Usability and Web Design .
No amount of search engine optimization is going to get people to buy or sign up. That's design/copy.
The fact you have so many ads makes people think this site has very little to offer.
What do you want your visitors to do?
Maybe, sign them up to your e-mail newsletter??? If so, bribe them with a free package for doing so. Then market them through an e-mail campaign.
Get a designer and get a copywriter. Once you've got a good site and strategy then work on visibility.
Best Wishes,
Tom