The following is from Dave Meltzer's website, WrestlingObserver.com:
Is that Tito Ortiz no-showed the weigh-in and the fight never happened.
The Nevada State Athletic Commission was not happy with this turn of events as they had officials there. Dana White was there and got weighed-in. There was no communication from Ortiz as to why he wasn't there. Ortiz did call White and leave him a messages saying that he was letting him off the hook, but White didn't think that message meant he was cancelling the match.
Spike TV was scheduled to air a 90 minute television special building up the PPV of the fight.