Yeah they kind of did it the hard way eh? Try this:

su
wget http://kanotix.com/files/install-ker...rce-vanilla.sh
wget http://kanotix.com/files/install-nvidia-5336-debian.sh
chmod +x install-kernel-source-vanilla.sh
chmod +x install-nvidia-5336-debian.sh
./install-kernel-source-vanilla.sh
./install-nvidia-5336-debian.sh

You may need to use a different nvidia installer. For example the 5336 version doesn't get along well w/ my nforce1 mobo. They can be found @ kanotix.com/files