Katbalou--you must be doing 123 Success, the older program. (So am I, no harm no foul, I just have the info from the new program too). With Winning Points, the new version of the Points program, in week 4 you get another slide-rule called a Points Booster. The Points Booster figures how many points you earn for what intensity and duration you exercise, at your weight. It is possible, with an hour of heavy exercise, to earn 11+ points!
If the 20 minutes = 1 point thing works for you, go for it. If the additional points are necessary to make your body not starve, go that direction. The program is modifiable to your needs.
p.a., I have no idea.

Try storms mom's site. I know people use MasterCook very often, but I couldn't even tell you if that's available online or not. Can you tell I'm not too fancy a cook?
