kernel-headers rpm

All,
Does the (kernel-headers) rpm required for recompiling the Linux 2.6.11.6 kernel?
Knowing that the base OS is RedHat 9 with kernel 2.4.20-8.
(rpm -q kernel-headers) shows that it is not installed however (kernel-source) rpm is installed.

If so, can you please provide from where can download it ?

Thanks alot,

Kernel headers are required for compiling modules.

why dont you just compile the kernel from source?It will be much better.