flopped a set of kings, did I play it wrong

[vandalay]

the 30 person MTT at party. I am the chipleader at the time and this hand comes up.

I think I played it perfect till the very very end which I figured I was beat, but could still have it as he could have been chasing, or had just Qhigh...... but as usual, I want other people to let me know

***** Hand History for Game 869473029 *****
Table Three Table(58594) Table #2 (Real Money)
Seat 8 is the button
Total number of players : 9
Seat 1: CBettyBoop ( $300 )
Seat 2: hammw ( $1575 )
Seat 3: Vandalay ( $2510 )
Seat 4: Shanghai_Boy ( $550 )
Seat 5: TARKUS428 ( $360 )
Seat 6: sparky463 ( $2050 )
Seat 8: jlb138 ( $1070 )
Seat 9: Traderman1 ( $655 )
Seat 10: mrzamondo ( $930 )
Trny:5387750 Level:2
Blinds (10/20)
** Dealing down cards **
Dealt to Vandalay [ Kh Kc ]
CBettyBoop calls [20].
hammw raises [60].
Vandalay calls [60].
Shanghai_Boy folds.
TARKUS428 folds.
sparky463 folds.
jlb138 folds.
Traderman1 calls [50].
mrzamondo folds.
CBettyBoop calls [40].
** Dealing Flop ** [ Jc, Ks, 8c ]
Traderman1 checks.
CBettyBoop checks.
hammw bets [300].
Vandalay calls [300].
Traderman1 folds.
CBettyBoop is all-In.
** Dealing Turn ** [ 3c ]
hammw bets [300].
Vandalay calls [300].
** Dealing River ** [ 2c ]
hammw is all-In.
Vandalay calls [915].
hammw shows [ Ad, Ac ] a flush, ace high.
Vandalay shows [ Kh, Kc ] a flush, king high.
CBettyBoop shows [ Qc, Td ] a flush, queen high.
Player CBettyBoop finished in 27 place
hammw wins 2550 chips from side pot #1 with a flush, ace high with ace kicker.
hammw wins 980 chips from the main pot with a flush, ace high with ace kicker.
ouch
CBettyBoop has left the table.