I see a couple of big problems with your site. Its very slow loading. My guess is the amount of graphics on the home page is really slowing it down.

The other thing is I have to horizontally scroll to view the whole page.

I can't speak for everyone, but for me replacing some of the graphics with more content would do wonders for the site.

I get an idea about the purpose of your site from reading the home page copy, but its not completely clear to me. If its possible to express that in the headline alone, then expand on its points in the first few paragraphs, that would be a winner(at least for me).

It sounds like your site concept has a lot of potential.