Troubles setting up basic internet access

[Marc Auger]

Hello.  I am a new Fedora user, with very little knowledge of details.
I have tried to set up internet access, (DSL) and not been able to get
through.  Mozilla will connect to the IP of my modem, bringing up the
connection page, but cannot get through to the internet.  How would I go
about setting this up properly?

P.S.
While I'm on the subject of basic idiot configuration, does anyone know
how to configure a wireless PC card?