I had played mabye two hands during the first 35 minutes of this tourny dur to an amazing run of cards, only for this to happen.


Full Tilt Poker
No Limit Holdem Tournament
Blinds: t30/t60
8 players
Converter

Stack sizes:
UTG: t4575
UTG+1: t4170
Hero: t1075
MP2: t1170
CO: t5370
Button: t5705
SB: t3030
BB: t3340

Pre-flop: (8 players) Hero is MP1 with
UTG folds, UTG+1 calls t60, Hero calls t60, MP2 folds, CO calls t60, Button calls t60, SB calls t30, BB checks.

Flop: (t360, 6 players)
SB checks, BB checks, UTG+1 bets t175, Hero raises to t500, CO folds, Button calls t500, 2 folds, UTG+1 calls t325.

Turn: (t1860, 3 players)
UTG+1 is all-in t3610, Hero calls all-in t515, Button calls t3610.

River: (t9595, 1 player + 2 all-in - Main pot: t3405, Sidepot 1: t6190)


Results:
Final pot: t9595
UTG+1 showed Qs As
Hero showed 7s 7h
Button showed Jd 8d

I knew I was dead when the turn hit, but felt I couldnt fold it there since the board could still pair on the river. Should I have pushed on the flop? Was the button justified in his call? Raise pf?