You're starting out good with an explosive banner, a centered context window and the sides are watermarked. Great concept there,....and THEN, you destroy most of it with a "Late night TV sales as". If you want to generate sales, you have to lead users/potential clients with a bit more finesse. Being in someones face with what you're trying to accomplish is NOT going to land you as many sales as if you offer content that delivers the product as an integral part. How this works? Example: Read an article in a car magazine, they are built with the intent to educate and review, while in the end, they are paid advertisements. Think about the way you can deliver your product and be a bit more creative than the rest of the guerrilla tactics websites. There are better and smarter ways to do this.
You've gotten off to a great start with the design of the banner and the sides of the site, make the rest to appear a bit smarter and you should have a decent shot at getting more sales.
best of luck