Currently my product description pages show the description I wrote with the product image linked to the enlarged image (each image is linked to www.mysite.com/image.jpg)

Then it says : For more information, please visit this product's webpage.
with the word "webpage" linked to the my affiliate's product description page.

I'd like to learn how to change the image to link the "product's webpage" as well.

Where can I find this code and how do I modify it to query the products webpage url for each item automatically?