All four Psychedelic Fantasies titles are now for sale as PDFs on rpgnow.com. Here is the link: http://www.rpgnow.com/index.php?manufacturers_id=6044&term=geoffrey%20m
The Psychedelic Fantasies line of modules:
#1: Beneath the Ruins
#2: Within the Radiant Dome
#3: The Fungus That Came to Blackeswell
#4: Dreams of the Lurid Sac
With more titles coming soon!