[rivermetimbers]

I seem to have trouble here, or so i think. Tell me what I did poorly here. Should I shove the river?

PokerStars Game #13188869921: Tournament #66928511, $5.00+$0.50 Hold'em No Limit - Level I (10/20) - 2007/11/11 - 23:44:26 (ET)
Table '66928511 1' 9-max Seat #2 is the button
Seat 1: kb1000 (1500 in chips)
Seat 2: shmu529 (1490 in chips)
Seat 3: Ewaniuk (1480 in chips)
Seat 4: NaddaHickman (1570 in chips)
Seat 5: DIMELLO (1500 in chips)
Seat 6: radfrobot (1500 in chips)
Seat 7: AA Dr J (1480 in chips)
Seat 8: hitorque (1500 in chips)
Seat 9: Smorg7-11 (1480 in chips)
Ewaniuk: posts small blind 10
NaddaHickman: posts big blind 20
*** HOLE CARDS ***
Dealt to shmu529 [Ac Ad]
DIMELLO: calls 20
radfrobot: folds
AA Dr J: folds
hitorque: calls 20
Smorg7-11: calls 20
kb1000: raises 20 to 40
shmu529: raises 160 to 200
Ewaniuk: folds
NaddaHickman: folds
DIMELLO: calls 180
hitorque: folds
Smorg7-11: calls 180
kb1000: calls 160
*** FLOP *** [Ah 2c 5d]
DIMELLO: checks
Smorg7-11: checks
kb1000: checks
shmu529: checks
*** TURN *** [Ah 2c 5d] [Ks]
DIMELLO: checks
Smorg7-11: checks
kb1000: checks
shmu529: bets 350
DIMELLO: folds
Smorg7-11: folds
kb1000: calls 350
*** RIVER *** [Ah 2c 5d Ks] [As]
kb1000: checks
shmu529: bets 550
kb1000: calls 550
*** SHOW DOWN ***
shmu529: shows [Ac Ad] (four of a kind, Aces)
kb1000: mucks hand
shmu529 collected 2650 from pot
*** SUMMARY ***
Total pot 2650 | Rake 0
Board [Ah 2c 5d Ks As]
Seat 1: kb1000 mucked [3h 3c]
Seat 2: shmu529 (button) showed [Ac Ad] and won (2650) with four of a kind, Aces
Seat 3: Ewaniuk (small blind) folded before Flop
Seat 4: NaddaHickman (big blind) folded before Flop
Seat 5: DIMELLO folded on the Turn
Seat 6: radfrobot folded before Flop (didn't bet)
Seat 7: AA Dr J folded before Flop (didn't bet)
Seat 8: hitorque folded before Flop
Seat 9: Smorg7-11 folded on the Turn