Windows Vista Online Tutorials?

Are there any good tutorials on Windows Vista?

By "good" I mean ones that are in plain, non geek English and that are
in terms of every day usage.

For example, I set up my wife's compute,r and then set up mine. When
I set up mine, somehow my computer set up a second network. I can not
figure out how to get rid of the second network. I only want one
network. but having spent several hours reading the help that came
with Vista, I can not figure out why I would need two networks and how
to get rid of the second network.

there are many other cases of features that seem to me to be new to
Windows, but I can not figure out what good they, if they are good how
to use them, and if they are not good how to turn them off.

what I need is something like set up of "Setting up Vista for home
netowkring".

thanks for any help.