New install need, need to edit /etc/apt/sources.list to include multimedia also most items are in non-free repos
Here's what mine looks like, you have different distro so yours won't be the same.
GNU nano 2.2.4 File: /etc/apt/sources.list
#
# deb cdrom:[Debian GNU/Linux squeeze-di-beta1 _Squeeze_ - Official Beta i386 C$
# deb cdrom:[Debian GNU/Linux squeeze-di-beta1 _Squeeze_ - Official Beta i386 C$
deb
http://ftp.us.debian.org/debian/ squeeze main non-free contrib
deb-src
http://ftp.us.debian.org/debian/ squeeze main non-free contrib
deb
http://security.debian.org/ squeeze/updates main contrib non-free
deb-src
http://security.debian.org/ squeeze/updates main contrib non-free
deb
http://backports.debian.org/debian-backports squeeze-backports main contrib$
deb
http://www.debian-multimedia.org squeeze main non-free
After adding the lines necessary:
sudo apt-get update
you might also need flashplugin-nonfree, if so:
sudo apt-get install flashplugin-nonfree
Follow instructions for you multimedia repo
Hope that this link helps you out
http://opensuse-guide.org/codecs.php