Go ahead then?
I don't happen to have Fedora 8 here right now, but as far as I know, you can install packages by
- launching the graphical package manager tool from the menu and point-and-clicking your way
- running 'yum install packagename' from terminal
- downloading rpm files manually and double-clicking on them or running 'rpm -Uvh package.rpm' from terminal
That's about it.