Pilot Group Affiliate Program - description from Softdepia.com:
Ready Affiliate Network Solution. Design can be easily customized. Unlimited products, unlimited advertisements, unlimited affiliates. Powerful affiliate management area. Special area for affiliates to check their stats and get advertisements. Detailed sales and click-through statistics. Fixed and non-fixed price products. Powerful pay-out management. Automatic and manual approval of sales. User-friendly interface and easy setup.
Pilot Group Affiliate Program is a "Free to try" program. You can download and try it for an evaluation period.