well i tested it and it worked for installing from a local patition

the only minor bug i found was that it doesn't check if the slackware packages are actually there where i write them to be, at first i wrote that they where ../slackware-current/ instead of ../slackware-current/slackware/
so at the next screen where i was supposed to choose wich package series i want to install it showed only the A series, and when i pressed enter again it even pretended to install it and wrote that the instalation and configuration is complete.
all worked well when i wrote the right path