From the introduction:
In January of 1998, [John Tynes] was hired by West End Games to design and write a new roleplaying game. WEG was known for their Star Wars game, among others, and they had bought a license to the television series Stargate SG-1.
[After Tynes] wrote about 30,000 words worth, adapting the D6 System for Stargate...WEG began to implode...and the project was cancelled.
The materials that had been created were published as free HTML by the author.