Kevin H. Martin, FX writer extraordinaire and once longtime Cinefex writer, has informed me that British film magazine HotDog has a an article about the story of the FX for the original Star Wars. He also wrote a similar piece for the Cinefex ILM 20th Anniversary issue.
The piece is set to appear in December and it's actually the featured story, making the cover:
Way to go Kevin. Be sure to check it out.