May be a crazy idea, but ...

Someone said that binary packages of KDE3-Trinity (Slackware 12.2 .tgz) can work on Slackware 13.x ... it is true!

• I used a full Slackware 13.1 installation (with KDE4 and everything else)
• and watched the good instructions: http://humanreadable.nfshost.com/sdeg/kde_35x.htm
• I uninstalled: kde*, kdei*, kdevelop*, k3b*, koffice*, amarok ... leaving the rest up, including qt4

• Then I downloaded the kde-3.5.12-trinity packages from here: http://mirror2.quickbuild.pearsoncomputing.net/trinity/trinity/slackware/12.2/ ...
• installing all packages with installpkg *.tgz

then I've taken from 12.2:

qt-3.3.8b-i486-2.tgz
dbus-qt3-0.70-i486-2.tgz
fontconfig-2.6.0-i486-2.tgz
freetype-2.3.7-i486-1.tgz

and, of course, all kde-i18n*

run startx ... It works great! ... I would say: Slackware!

Note: the freetype package is the unique critical element, if not downgraded freeze X (and all system).

Other little things:

missing start menu:

replace /etc/kde/* with menus in /etc/kde/* of 12.2
create a symbolic link in /etc/xdg:
menus -> /etc/kde/xdg/menus

perhaps it is too early to tell, but the system Slackware-13.1 <-> Trinity-KDE3.5.12 is very stable, I feel ... I seem to be on Slackware!

Many thanks to Timothy Pearson and KDE3-Trinity developers!