Mary, welcome back to the Zone!
I don't use the products, I am also a firm believer in the "classic" ZONE. If you have questions about the foods, I think your best source of information is by calling the customer service number. I haven't changed much in terms of what I am eating, the fat "dose" hasn't changed, but maybe some of the products have a little more than what the "balance" is... IDK!
My goal is to eat whole foods in the Zone. I try to steer away from processed foods. I am not always successful and would not say that I am 100% at that, but I definitely work to keep processed foods to a minimum.