store/products issue

I am having an issue with the marketpress plugin and hoping you can help. When you type in http://www.mysite.com/store/products it loads all images from the media section of the site.
I know that the URL will not be visible buy following the click path but it is visible if they manually type in the url or manipulate it hoping to find the right product page.
Have you come across this issue in the past and know how I can fix it.
Thanks
Adam