I'm sorry you feel that way, but it is true - we cannot know beforehand exactly what set of PIDs is supported by your vehicle. This is stated on our website. For instance, on this page:http://www.palmerperformance.com/support/supported_vehicles/ford_enhanced.php
right at the top it says "Some parameters may not be supported by all vehicles." But this is hardly unexpected. Suppose we have support for, I don't know, cruise control PIDs, and you use it on one vehicle and the PIDs work, but then you try it on another vehicle (could even be of the exact same make and model) they still may not work, especially if the second car didn't include a cruise control option.
But that's just an example. There are many reasons why this could happen. Perhaps you didn't connect to the correct diagnostic system? It is also possible that there is a bug in our software. In any case, you would have to work with us to figure out what is going wrong. I would be interested to hear what other scanner you were able to get these PIDs on, and what vehicle ECU they came from. That could help us determine if we have a bug in our system.