To compile the kernel with the CK2 patchset do the following:

- cp linux-2.6.21.tar.bz2 /usr/src
- cd /usr/src 
- tar xvf linux-2.6.21.tar.bz2
- mv linux-2.6.21 linux-2.6.21-ck2
- cd linux-2.6.21-ck2
- copy the patches provided to the current directory 
(top of the source tree)
- bunzip2 patch-2.6.21-ck2.bz2 squashfs3.2-patch.bz2
- patch -Np1 -i squashfs3.2-patch
- patch -Np1 -i patch-2.6.21-ck2
- use the config file provided (config-ck2-2.6.21 and rename it to .config)
- to make sure all the options are set, run "make menuconfig"
- compile the kernel and modules:

make bzImage
make modules
make modules_install

- when that is done, the bootable kernel image will be in arch/i386/boot. 
its called bzImage, but rename it to vmlinuz-ck2-2.6.21, 
which is a more appropriate name.
- the modules are located in /lib/modules/
- the packages have to be built manually, with the kernel image, 
modules and source in seperate packages.