Donor Database and ranking mod please.

[Drache]

A mod that allow you to track the donors. Like if someone donated your site. they pm you recieve the donor stat and there will be a place where you can enter how mcuh they donated. if next month they donated again then you just type and his account's amount will add up. and there will be a ranking page which we can enable or disable for public viewing or not.

Is there a hack like this? if not can someone make something like this?