I'm confused about which program you are referring to in the second example. It's not easy to start an old program. In my opinion, unless you have all of the original materials with you, including the calculator and individual food points, you are better doing the new program. You only have part of the information, and there's a possibility you will either gain weight or starve.
Many foods in the grocery stores have Points Plus values on them, which are not the same as the old program, plus all current recipes that are being shared and released are calculated on the new program. You're just setting yourself up for a hard time unless you have all the material and tools.