First you must really upgrade to fedora core 4. Redhat 9.0 is completely depracated at this point. If you don't want to download and burn the CDs then just do a network install - but better have a fast connection without interrruptions.
these instructions are for 32 bit processors.
one download mirror site.
Network install instructions
download linux boot.iso
burn this to CD
boot from CD
choose network install
enter location of distro directory
Then follow this installation.
Next log on to http://www.fedorafaq.org/
update your yum.conf and repos.d
then run yum -y upgrade
then you can add multimedia support by follwoing instructions on the site.