Questionable call

[MadMonster]

Question: Any views on how I played this hand? ( 4 players left on a 9 player table--3rd place pays)

PokerStars Game #125655257: Tournament #358707, Hold'em No Limit - Level V (75/150) - 2003/09/22 - 21:10:35 (EST)
Table '358707 1' Seat #7 is the button
Seat 1: MadMonster (3050 in chips)
Seat 2: bossen (3250 in chips)
Seat 3: Berkshire (2330 in chips)
Seat 7: numbnutz (4870 in chips)
MadMonster: posts small blind 75
bossen: posts big blind 150
*** HOLE CARDS ***
Dealt to MadMonster [Ts Ad]
Berkshire: folds
numbnutz: raises 300 to 450
MadMonster: calls 375
bossen: calls 300
*** FLOP *** [Ah 9s Js]
MadMonster: bets 900
bossen: folds
numbnutz: raises 3520 to 4420 and is all-in
MadMonster: calls 1700 and is all-in
*** TURN *** [Ah 9s Js] [3s]
*** RIVER *** [Ah 9s Js 3s] [8c]
*** SHOW DOWN ***
MadMonster: shows [Ts Ad] (a pair of Aces)
numbnutz: shows [6s As] (a flush, Ace high)
numbnutz collected 6550 from pot
*** SUMMARY ***
Total pot 6550 | Rake 0
Board [Ah 9s Js 3s 8c]
Seat 1: MadMonster (small blind) showed [Ts Ad] and lost with a pair of Aces
Seat 2: bossen (big blind) folded on the Flop
Seat 3: Berkshire folded before Flop (didn't bet)
Seat 7: numbnutz (button) showed [6s As] and won (6550) with a flush, Ace high

[1800GAMBLER]

Fold preflop. Fold the flop.

[Ignatius]

I think you played the hand just fine. If the button is very aggressive, a check-raise on the flop might also have been an option.