The Prospress Project
It's great you've discovered Prospress! Prospress is an entirely free plugin to help you create an Auction marketplace on your WordPress site.

WordPress is wonderful for managing a website, which is why it powers over 25 million of them. Prospress harnesses the wonder of the WordPress publishing platform to create a marketplace tool like nothing seen before. A prosperous new era is about to begin with WordPress.
There are many great shopping cart plugins for WordPress; Prospress isn’t one of them. With Prospress, registered users can post auctions, place bids, provide feedback and make payments. Everything required to create a many-to-many exchange that differs to the one-to-many exchange of a store.
Marketplaces provide unique benefits. For sellers, they remove the overhead of creating a store while providing access to a larger group of buyers. For buyers, it’s easier to compare items and prices are often lower. Create a marketplace for your community, everybody prospers.
Prospress adds a lot to WordPress, but that doesn’t mean you should have to do a lot to install it. Installing Prospress is no different to installing your other favourite plugins. It activates with sensible defaults too, so you can go from WordPress to Prospress in 30 seconds flat.

Plugins → Add New, find Prospress & install; or download then upload Prospress to your /wp-content/plugins/ folder.
