nukeevangelist writes:  

nuketreasury.sourceforge.net

NukeTreasury is a mod for PHP-Nuke. It adds front-end components to help you get your donations in the door, and back-end components to help you manage it. The mod is designed for organizations that require donations every month to pay their expenses. It provides a visual indication of how much money you need this month, who's donated, and how much is left to be donated.

nuketreasury.sourceforge.net

travel over and support the sustainability - get the code and give feedback as much
as possible. Tell all your friends and customers about this module. work with it

Note: 

Raven now owns this project so if you have ideas, etc., please post them to the forums at nuketreasury.sourceforge.net