Just few ideas…
I guess you are limited in terms of the layout with your existing platform. But you could try improving the look of the skin.
The overall style is unclear and inconsistent. There are too many elements which seem to have same level of importance.
It would help, if you made the most important bits more prominent and got rid of some of the less important stuff from the main product listings page. These could be moved to the actual product pages.
Hope this helps…