As far as I'm aware I've installed the kernel sources by doing the following:

Code:
dpkg -i kernel-sources-2.4.27-2-386.deb
cd /usr/src
tar -xjvf kernel-source-2.x.y.tar.bz2
cd kernel-source-2.x.y
cp /boot/config-2.x.y-z-arch .config  <-- this didn't actually work...
make-kpkg --append-to-version "-z-arch" --revision 2.x.y-z --config old configure
rm -f /lib/modules/2.x.y-z-arch/build
ln -s /usr/src/kernel-source-2.x.y /lib/modules/2.x.y-z-arch/build
However, the NVidia driver installer reports (when compiling the kernel interface) that it can't find the file 'nvidia.o'.

Can someone point me in the right direction?