1. Quit screaming with all caps.
2. X10 really does not monitor this forum, so your rant is falling on ears that have heard this story before. AND many times the problem is not X10's. So take some deep breaths before going on.
3. The fact that you say "MY PACKAGE ARRIVED NEXT DAY - SUBSTITUTED DIFFERENT/UPGRADED SENSORS ( HA HA ) THEY WOULD NOT WORK WITH MY SYSTEM" tells me the problem is possibly at your end. Even though you did not bother to tell us which system you have, all X10 security sensors WILL work with any of the X10 security systems. So read the directions and try it again. Your base could be bad, but; how are you registering your security sensors? Do the arm/disarm remotes work? How did you test when you determined the security sensors do not work with the system?
We can help, but need information and cooperation from your end.