AK: I'm reraised, flop is KQT

This is the 6th hand of the SnG. I just raised the same PF limper to 60 on the previous hand w/ AJo. Everyone, including limper, folded. So this time I go w/ 80 PF. After that I'm lost. What should I have done this hand? This is the first hand that the villain has voluntarily entered.

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (8 handed) converter

UTG (t1460)
UTG+1 (t3259)
Hero (t1510)
MP2 (t1530)
CO (t1470)
Button (t1331)
SB (t1440)
BB (t1500)

Preflop: Hero is MP1 with K[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img].
UTG calls t20, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t80</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">CO raises to t200</font>, <font color="#666666">3 folds</font>, UTG folds, Hero calls t120.

Flop: (t450) T[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets t250</font>, Hero calls t250.

Turn: (t950) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t1060 (All-In)</font>, CO calls t1020 (All-In).

River: (t3030) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players, 2 all-in)</font>

Final Pot: t3030