don't worry about getting flamed for asking dumb questions. we don't do that here.
don't know if you found this yet:
open a terminal and do these commands
su >enter<
type root password >enter<
mcc >enter<
that will give you a central place, the mandrake control center, to look at a multitude of things on your system.
as far as firewall systems, I would recommend one:
such as:
firestarter http://firestarter.sourceforge.net/
or
guarddog http://www.simonzone.com/software/guarddog/
or
Mandrake has a small lightweight, not easily configured firewall in MCC.
I wouldn't worry about antivirus. no need.
As far as your last question. I have no idea what your talking about. Can you explain it differently?