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There are many things that you can do to get your site on top.
Although this is targeted at Google, it is a good base to start with: Successful Site in 12 Months with Google Alone [webmasterworld.com]
The top frame is used only once on the site and that is when you browse to the Products section. Other than that, the top frame serves no purpose for the rest of the site.
I'm also seeing some unusual <!--commenting--> going on here and there. Not that it really matters but there is one comment that contains an entire page of html code, not sure what that is for.
Many of the basics are missing such as alt tags. All of your navigation links are graphical, there are no visible text links. I typically recommend a site map, especially with a framed site, and I cannot locate one.
There are other issues that you'll uncover while reading various information here at Webmaster World. Good luck!