Some questions:

-1 Are these all the same systems? Some manufacturers do not use these fields so it gives a blank value.
-2 You say WMI is installed, is the service also started?
-3 When you install a NT4 machine with 2K or even XP does it return something then or are the fields still blank?

BTW: A small tip, please use the code tags when posting code so the formatting gets preserved and its more readable.
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Mart

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