btw the entire "copy and make an initrd" step can be
shortened to
make install
that copies all needed files, makes an initrd and also adds the new
kernel to grub (or lilo if that's your preferred poison)
Right. Sorry, in the spirit of posting answers:
01) download
http://mirrors.kernel.org/fedora/core/6/source/SRPMS/kernel-2.6.18-1.2798...
02) rpm -ivh kernel-2.6.18-1.2798.fc6.src.rpm
03) cd /usr/src/redhat/SOURCES; cp linux-2.6-r8129-update.patch .
04) cd /usr/src/redhat/SPECS
05) cp kernel-spec.patch . ; patch -p0 < kernel-spec.patch
06) rpmbuild -ba kernel-2.6.spec
07) cd /usr/src/redhat/BUILD/kernel-2.6.18/linux-2.6.18.i386/
08) make
09) make modules_install
10) make install
11) reboot
-benjamin