NVidia nvsdk

Hi All I'm trying to start Linux programming but keep coming up against problems. The latest one is OpenGL programming with a Geforce 3 graphics card. I'm told that I have to use the NVidia OpenGL libraries (nvsdk) but having downloaded it, it seems to be totally Windows. I have no idea how to use it (if it can be used under Linux) and even the docs are in Windows formats. Can anyone help me on this or do I have to throw this otherwise good card away and start again? TIA Stewart Taylor