on the nvidia packages, just running make does the make and the install, there's no ./config script.
if you're running into a compile error, then you might need to re-download the packages... but if it's giving you an error about not being able to install links, then that's common with the nvidia packages. you have to do that manually, but it's pretty easy.
i think i've already seen every error the nvidia packages can throw at you -
just be sure to give us the exact error message that it's producing.