This is three modules that allows you to show your best selling products listed like the new products on the three stages of index:
The Front Page (Global best sellers)
The Sub-category Page (Best sellers from the sub-categories in that category
and the Product Listing Page (Best sellers from that category or manufacturer)

Upload, install and configure. Remember to copy and translate language-files to relevant places.

Can also be installed via the Zipur installer

Credits to PhoenixCart core developers, as this is basically just core-files with very, very minor tweaks.