According to his orig post, he runs Fedora Core 2, so he should have yum, apt-get, and the software thingy in Nautilus available, but we don't know what he has installed.
I presume they are still use the same gui package control, redhat-config-packages, don't they?
Do you have a "start here" icon on the desktop? A bunch of clicking through that will find the pacakge manager if you don't want to open an x terminal.
Another way, search through your menu until you find "add/remove applications" and click on that.
Yet another way: Launch Nautilus (your file browser), Menu Item "Go", select "start here", then doubleclick "applications".
I still suggest apt4rpm with the Synaptic front end for the best software management.
There is lots of info about these if the trouble to read some at FedoraNEWS.ORG
# I can't figure out what software I want and how to install/uninstall it
The table of equivalents, replacements, analogs of Windows software in Linux
# Find software here
# Guides to software management
LNAG - How do I install a program I downloaded from the Internet?
Rute Guide's software explanation
You might want to check out CheckInstall
to manage source code installations/uninstallation
Basic system administration
To change to the full root account (system administrator), if you are running X, open an x terminal and use these commands from your user account. Note the change in the prompt. You can do the same from a virtual terminal as well, but you can't open an x terminal to do so.
[fancy@tinwhistle fancy]$ su -
Password: <give root password and press enter>
Remember, now whatever you command in root (it's the "god" mode. You can bless or destroy at your whim) usually gets done if enough system is left to carry out the command.
Sit on your hands and read the commands you type at least 3 times before pressing the enter key when in root.