Ahhh!! I am not very bright and I ask too many questions. I was trying to install the Enlightenment windows manager from a RPM to my RedHat 7.1 system which currently uses the GNOME GUI. When I clicked on "install" in my file manager, I get a short pause (my systems is a P120 w/ 24 Mb RAM!! I do have a faster 750Mhz but my parents are too afraid of Linux to let me install it.) and after the pause I get a message that say I need to be a superuser to be able to use this option. How do I do this??
Hi pantera,
The superuser is also known as root, you can switch to root by either typing:
su root
from the command line, or by logging out of your current session and then logging in as root.
Andy Hibbins 
Just to save any hassles that may come with not inheriting the superuser's environment variables set up in the .profile make sure you use the "-" option to su!!!
i.e.
su - root
Regards.
thank you all so much for clarifying the super user thing up for me!!