Zoltan,
I would be glad to be wrong here, but I understood that to mean 'Here
are versions of the source code tailored for specific hardware and
operating systems. Choose the appropriate one and build the driver
this way...'.   That is followed and qualified by the pointer to the
website that certifies which kernels are certified.  In our case, for
instance, that is 2.6.9-67.EL.

Best wishes,
Keith Arbogast