Hello! I'm afraid the older versions aren't available at the moment, and I'm not sure how itchio pages generally organize multiple versions of a game. Just for posterity, though, here's the very buggy initial release version.
Thanks for supplying a link to that download. I try to collect and archive roguelikes when I find them on an external harddrive, sort of like a gaming library and history of roguelikes past and present. If by chance you could upload previous versions from 1.0 onward to a mediafire folder, I would be very grateful, if not no worries.