ditch gnome and get happier with KDE
but if you must......
-an easy way to find ftp's that will work as install sources is to open yast and go to the update section (YOU)
-Find a server near you.
-Go online and open the ftp location and find the path to the edition you have and transfer that location to the install source section (need to add a source)(move it to the top of the list).
-depending on your connection and the server load it could take a few minutes to sync, but you will have access to all of that server's packages.