AFAIK, specific versions (10.2 etc) do not have the necessary information (FILELIST, etc) to work with swaret, but current does. I'm upgrading the sweet lil' G3 from 10.1 to current as we speak, using swaret.
ops! almost forgot that :-P 10.2 *should* work with slapt-get current is following slackware files and folders structure
-- Marco Bonetti Slackintosh Linux Project Developer http://slackintosh.workaround.ch/