You're right, it looks like everyone has pulled the older versions. I had version 4 on a CD, but I threw it away thinking to myself "ahhh I can just download it"
Anyways, version 10.1 should still work with a minimal X configuration(no KDE, or GNOME). Heck, if I can run AIX 5.1L on a IBM c10 80Mhz PPC, surely slack10 can run on a p200