Credit System for Joomla 2.5

I am reposting this project as a new project, in order to be sure all the details are clear. I need a component that allows my users to buy credits on the joomla 2.5 site. These credits can then be used in the other parts of the sites to pay for items or access. There is a component in existence for Joomla 1.5 that has the functionality I need : [login to view URL] So basically, I either need a rework of this to be 2.5 compatible, or a new component that allows the same functionality. I will have more projects very shortly, so make me a good offer :)