We need some files end examples on how all the programs are used.
1) The first thing is simple tutorials, similar to the "hello, world" examples in all programming tutorials. How do you do the simplest things with the program; add two numbers, plot a simple curve, show a simple molecule etc. Just to show that the program works and that you have understood the basics about its usage.
2) Next things are cool demo cases. How do you show in some seconds that you can do really advanced things with the program. Those cases could also be a basis for nice screen shots.
3) The third thing we need are test cases with things that often fails if something is misconfigured.
We will probably also need some instructions about how to run the examples above.
Of course no one can do everything, but all of you can do something. Send us some files and a note about how to run them.