Hi Mooharius,
First I want to say that I know nothing about tournaments or PT4 but I did some Googling and found these two for you.
Your net adjusted results are based on the ICM calculations for all of your all-in hands throughout the tournament. There can be some cases where getting all-in is a negative ICM play even if you turn out to be ahead.
"My C Net Adjusted" is your expected winnings based on the difference between in ICM values between your actual chip stack at the end of a hand and the all-in equity adjusted chip stack you "should have had" at the end of the hand; for all all-in hands in a tournament. This calculation uses every all-in hand in a STT and final table hands from MTTs where we know the complete payout structure.
Also someone said that it is quite useless stat...
I hope someone with better knowledge will answer you 
Regards,
la55i