The rules and how they work are defined in the helper group rules page that you posted previously. If you can please post back with a copy of your current WA_SecurityAssist and a copy of a page that has the rule applied to it and a copy of your login page in a zip archive, I can do some testing to see what the problem might be.
If you can also post back with an example record from your table that might help to determine if there is a problem with the way you are setting up the experience.