At the moment I am writing the whole set of scripts for CashedClicks.com (http://cashedclicks.fundmental.com). The set includes a protected admin area, site using cookies, realtime stats, paid click tracking, paid email tracking, banner tracking, user administration, Referral Tracking and Validation and more. If you are interested then please email me at cashedclicks@hotmail.com or make an offer here. I can also customise it fully to your needs.
thank you