Newbie question: Fedora Core 3

[David Garcia Aristegui]

Hello, i have to update a Fedora Core 3
[root at goldman sources.list.d]# more /etc/fedora-release
Fedora Core release 3 (Heidelberg)

apt-get don't works
[root at goldman sources.list.d]# apt-get update
Fetching list of repositories/mirrors...
E: Failed to fetch mirror list file:

[root at goldman sources.list.d]# more fedora.list
# Please choose the nearest mirror 
http://www.fedora.us/wiki/FedoraMirrorList
rpm http://fedora.mirror.sdv.fr/fedora fedora/1/i386 os updates
# Add any local / 3rd party repositories here..

Where could i find the proper values for the repository? Thank you in 
advanced.