Terminator 3: Rise Of The Machines Discussion

[Vash]

I loved the twist at the end. Perhaps Arnold's big lie about the fallout shelter was foreshadowed by his small lie to Katie Brewster (Claire Danes is purty...) at the beginning of the movie about letting her go if she told him where John Connor was.

Two questions:

It was Katie's father, not Arnold, who mentioned Crystal Peak (I believe that was the name of the place). Did Mr. Brewster understand what Arnold was trying to do and gave John and Katie the location of a fallout shelter instead of the location of Skynet's main computer (a location which, as it turned out, doesn't exist)?

Also a time travel mind-#$%& question for y'all...John said that Katie's father was the key all along and if the events in the second terminator movie did not occur, he would have "hooked up" with Katie and been in contact with Katie's father much sooner. But...but...anyone see a problem with this...

1) If the Terminator did not come back in the second movie, Cyberdyne would have killed John and his mother.

2) If the Terminator did not come back in the second movie, and assuming that Cyberdyne didn't waste them, neither John nor his mother would have known about Skynet or any of the details about Earth's grim future (since John's mother was not informed of such details in the first movie). So if the events in the second movie didn't occur and John didn't know about Skynet...what would his association with Katie's father have done? John would not have known about Katie's father's job and the Skynet project anyway.