Well, got this fixed by removing KDE entirely and via
http://easyurpmi.zarb.org/ connect the package system to cooker for the community version, probably the latest Mandrake.
By not using Drakconf but a shell and executing urpmi kdebase-common I got a very basic kde 3.2 installation (branch (04Feb2004) and later added new KDE parts the same way up to the point where dependencies would break.
It took a few more twists and turns to get Kmail 1.6.1 on (kdepim parts) but nothing difficult out of the ordinary for Linux.
Finally the file holding the plugin-scanner accepted installing and Konqueror (3.2.0) worked nicely again containing the selected plugins in its list. Hope they actually work :-)
By the way, I started off by installing the XFree 4.3 before anything else. It had bugged me earlier when upgrading some stuff .As that worked I was already pretty happy knowing I could work through IceWM.
I've already got kernel 2.6 something on, but when Mandrake 10.1 is released on cd, I'll have it replacing my Mandrake 9.2
Hope I got it right and used the correct forum without a legal eagle to assist ;-)