You can write the scripts in any text program, hell even notepad would work. Then compile the text "source" into .sco files using Scocl
There are no tutorials for scripting you need to learn it your self.
I can offer some basic info on how to get started though.
Btw, most people use MSVS to write the scripts because it helps to show if the code is written wrong. I use Microsoft Visual C++ 2010