Thank you for the troubles.
Though my problem is already solved.
I found that in the extra package of Slackware 8.1
(not on the iso cd. ... /slackware/slackware-8.1/extra )
contains sgmltools 1.0.9. ++ worth checking out.
(gcc 3.0, java - runtime lib. ,cups , sdl .. and more)
Kdevelop now managed to generate the documentation
files and so .. quite kewl actually.
I wonder a bit if they will fix a contribution iso later?