
You have to know something about computers to install a
tutorial.  However, you need the tutorial in order to
know something about computers.  No tutorial can overcome
this paradox.  Therefore, the best way for absolute
beginners to get a tutorial running is to have somebody
do it for them.

That said, Sunshine can be tried out without installing it,
like this...

From the DOS prompt:  Enter WIN SUNSHINE
From within Windows:  Run SUNSHINE.EXE

To install Sunshine...

From the DOS prompt:  Enter WIN SETUP
From within Windows:  Run SETUP.EXE

The installation process will give you more information before actually
changing anything.