Headers and source files
Not too sure if this will help you much. But you can simply extract the archive in order to get/see all the files that Nvidia puts in. Also There is a reference for getting the headers too. It's all in the documentation, I'd quote it here for you, but I don't have it on the system. (Trapped on a windoze box @ work) But you can find the docs in /usr/share/docs/NVIDIA
There'll be all the info you need in there.
Hope that helps.