[Yum] Novice problems

[malcolm]

I suppose it's just me, since when I google, nobody else seems to have the 
same problem. Perhaps I'm just a liitle bit slow but I don't seem to be able 
to do even simple things with yum.

I wanted to upgrade KDE for SuSE 10.0. 

As far as I could see from the almost non existent documentation, I need to 
have a file in /etc/yum.repos.d called, for instance kde.repo, i.e.

% cat /etc/yum.repos.d/kde.repo
[KDE3]
gpgkey=ftp://ftp.gwdg.de/pub/opensuse/distribution/SL-10.0-OSS/inst-source/pubring.gpg
name=suse 10.0
mirrorlist=http://software.opensuse.org/download/repositories/KDE:/KDE3
enabled=1
gpgcheck=1

but this does not work.

Any help for a novice?

Malcolm