Free to download.

JROX.COM Affiliate Manager is a powerful, dynamic affiliate management system that is fully customizable.

Easy Web-Based Installation with auto-uploader, you can have your own affiliate marketing system installed in a matter of minutes. Support for multiple marketing tools, such as banner ads, text ads, text links, email marketing ads, and hover ads. Built-in Graphical View of Affiliate Downlines available.

Multiple Affiliate Payment options, with support for Paypal Mass Payment option, and Invoice Payment Printing.

Real-time affiliate tracking, automatic database backup, data export, Daily Admin Stats and Reporting, Fully customizable Email and System Templates, Customizable Members Area, Multiple Members and Admin Themes, built-in security and events logger, Dynamic Flash-Based Reports, built-in HTML editor, and support for up to 10 commissions levels with forced-matrix option available. Support for dynamic subdomain affiliate links