Fedora 9 had end of life July 2009. No new updates since then.
The repo worked last time I used it. ( Three weeks ago.)
Did you try : 1) su , 2) yum install <package> ? ?
To answer you, the name the of the xxxxx.rpm, please.
The universal install command is : rpm -Uvh ...
rpm -ivh <package> , will keep an already installed version.
rpm -Uvh <package> , will update or reinstall.
The command : rpm -qa | grep <first-word-in-package-name>
.. will show, if it is installed.
rpm -qa | sort > all-my-packages.txt
.. is saving the text file in /home/<user-name>/