Add Image/File in Products

[cxc999]

Hi, I'm hoping someone out there can help me with a problem I'm having with extra images/file on the product page. I dont have any problems adding them. usually when you click on the extra image (normally shown below the main image) it opens that image up as a bigger image. I would however like to (when clicking on the image) go to a different page on my site or be redirected to that image as a product instead of an extra image. Anyone have any ideas??

cheers
cxc999