i am thinking of making a simple internet affiliate referral-based marketing system, kinda like spiderweb system and bear marketing system, that pretty much combines both of the spiderweb system and the bear marketing system (i have my sign ups sign up for both the spiderweb system and the bear marketing system, and complete all the steps in both of those systems). anyways, i was wondering how to code the referral system and the affiliate link system. is it very hard to do? ok thanks