opengl fragment program

I’m a new opengl programmer.
Now I have a project and I must use GL_NV_fragment_program for NV30.
I have found the,but I can’t find any tutorial of it.
who can tell me where I can find it ,such as tutorial,sample code.
thank you

this is what i found

This is so new extension that i believe there are no tutorial or sample about. How about you write the first one