I'm starting over again using Flex as well. I tried Points Plus and it did not work for me, I was gaining and losing the same 5 pounds over and over. Flex worked great for me once, but I went off track and gained it all back. Anyway, if you lost your old materials and want to go back to Flex, try downloading MyScore Plus from iTunes. The app allows you to select using the points calculator in the old or new style of points. It also has a directory of points for common foods, a tracker, exercise tracker, etc. I can't remember how much it costs, but using that in combination with Weightbot app to track my losses has really helped me in the past.
Mini Goal: 275 by End of April 2014