Okey… yesterday I was downloaded kde4.2 testing on slackware-current. I download it from http://kavalinux.com. With rsync, i took all the testing directory in slackware-current. it’s size about 400Mb. After all packages downloaded, i start my slackware with runlevel 3 and then i start to upgrade the KDE. I use this code
upgradepkg –install-new deps/*.tgz extragear/*.tgz kde/*.tgz [...]