In the early hours of July 6, Jenny, head of a software piracy ring based in the Pacific Northwest, paced impatiently in front of a rack of high-speed personal computers, waiting for the phone call that would make her a superstar in the pirate underground. It would come from an employee of LucasArts Entertainment Co. in San Rafael,who for $300 would supply Jenny's pirate group with one of the most anticipated games of the summer: "TIE Fighter," based on the "Star Wars" movie trilogy and priced at about $60 per copy. At LucasArts, the employee attached a small cellular modem to the back of his PC - a technique that would keep any record of the call off the company telephone bill - and dialed. Within a few minutes, the program had arrived in Jenny's computer, lacking only the code keys that would make it possible to play the game without an owner's manual.