yum not finding kde-repo in 6.5

[John Pilkington]

I just changed repos from 6 to 6x and the yumex upgrade (one laptop) was 
smooth; but I have the kde repos enabled, mainly for kde-unstable, and 
yum is looking for mirrors of 6.5 which aren't yet defined.  I'd like 
guidance, if it's available, please.

http://kdeforge.unl.edu/apt/kde-redhat/epel/
Thanks in advance,

John P