How to update packages from fedora-extras?

[Belegdol]

Hi. I've upgraded from FC3 to FC4 and now

yum list extras

returns swarms of packages, mosty ones I've installed from fedora core 3 extras repo. Is there a quick way to update them with fc4 extras? Greets.
[edit]
I've managed to do this, my yum repositories were obsolete. But when I uncomment the baseurl entry, it is pointing to fc3 repos. Have a look here:

[extras]
name=Fedora Extras $releasever - $basearch
#baseurl=ftp://ftp.ps.pl/pub/linux/fedora-extras/$releasever/$basearch/
mirrorlist=http://fedora.redhat.com/download/mirrors/fedora-extras-$releasever
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-extras
gpgcheck=1