Error setting up Fedora network

In an attempt to set up Fedora 12 network, I have encountered an error. I used both FTP and HTTP but separately first with FTP and after failure I used HTTP but it failed too. The installer cannot complete the network setup. To see what I mean just see the image with the error message. I have clicked Retry several times but am stuck at the same place every time.
Error image:

Error message:
Unable to read Package metadata. This may be de to a missing pepodata directory. Please ensure that your install three has been correctly generated.
installationRepo 200911081854i386.
