mila zeng's getting close. mila zeng, usana associate: " i have never catch a cold since i take usana products." zeng is a natural saleswoman...selling usana in alaska. she's recruited more than a hundred other members. she's a team leader getting money from their sales, as does her team leader and her team leader's team leader up the line. she's what usana calls a gold director...meaning she's one of the top one percent of usana distributors...gold directors average commissions of 66 thousand dollars a year. mila zeng, usana associate: "my future goal gonna be diamond." diamond would mean mila had 500 distributors below her and would about $5000 a week. but for every mila zeng, there are hundreds of distributors earning nothing or next to nothing. if the companies are right...most aren't trying to earn anything. the question...how many people come close to losing everything? people like nicole lopez. nicole lopez, springville resident: "guess what? i'm still paying that debt, we're ten years later i'm still pa