That is a good question. It will benefit the new SFI affiliates.
This is what you are going to do. Put Key Code in you SFI ID in every advertisement you post. Your Key Code is a numbers from one digit to four digits. After you SFI ID e.g. sfi4.xxxxxx7.key code/FREE. This the best way to track your ads. Aside, from this it will become your basis for making a re-advertisement for that site. Maximize you results by continue monitoring your tracking.