Hi, Baslinfans!
There is a mirror with old Slackware on
gopher://mirror.lug.udel.edu/1/slackware
Do not use a gopherproxy for bigger downlads.
Best to use is lynx.
For bigger downloads use it like this:
lynx -source gopher://mirror.lug.udel.edu/0/slackware/iso_images/
slackware-4.0-live.iso > /DOS/archiv/sl40lve.iso
Werner