Cashbak incentive site

Ideally i need a clone of sites like [login to view URL] or topcashback.com. The site just need to be plain and simple, with individual dynamic page for each merchant (description, cashback rate). Back end management will need to be there as well since i will need to change all the settings from time to time. I understand there are some ready made packages out there, i.e. Valueonweb and survivor has done it before. I will also accept those if they are working. Will be great to have a look at the templated first.