This contribution places an easily browseable thumbnail row at the bottom of the product info page.
This row contains all the products in the currently viewed category with the products sorted by the products_ordered field so can be used as a powerful and easy to use upsale feature.
It has a smart memory so their place within the product thumbnails is remembered and makes for a user friendly browsing experience.
Screenshots in package.
Super easy install: upload 2 new files and add 1 line of code to product_info.php