whats tracking pixel on copeac

ive noatied that copeca has a tracking pixel and to be truthfull i don't understand how it can be used to my advantage ?

could someone please explain ?

Someone asked this recently.

http://www.blackhatworld.com/blackhat-seo/cpa/126619-what-does-pixel-fire-mean-copeac.html

They can add a php pixel (from your stats package) to an offer's completion page and when someone hits that page you can see the conversion in your stats package.