Hi Kenzo,
No worries, we've all been there, either here:computer_ or here
I'm afraid that I can't answer your question about the emails, because I am not aware of a format that you can save an email to your desktop and view it without another program.
In regards to basic computer usage, you are already at the right place :-D
You just want to start a new thread under your Operating System, such as are you using XP or 98 or whatever. Start at the beginning with what you want to know, and we'll get you started. (Might even inspire me to write a beginner's tutorial.
Look forward to your reply, and your new thread.
TTFN
T