Are you referring to packages like this: libkdebase4-konsole-3.5.6-34.1mdv2007.1.i586.rpm?
There are several of them with that sort of numbering.
I can't explain the significance of the "4" in the name, but it looks to me like a KDE 3.5.6 package.
Perhaps Adam W. will clarify.
The KDE4 packages in contrib, I think, carry a version number 3.80
Jim