Good aggressive pre-flop play or lucky?

[Cincy_Kid_ES]

Full Tilt Poker Game #3805378209: Table Rams (6 max) - $0.10/$0.25 - Pot Limit Omaha Hi - 17:46:05 ET - 2007/10/09
Seat 1: 1forthehouse ($22), is sitting out
Seat 2: Straight French ($9.65)
Seat 3: The_Dealer_No1 ($22.35)
Seat 4: LuckyHorshoe ($21.05)
Seat 5: oneoutstls ($5.55)
Seat 6: Cincy_Kid_ES ($40.35)
oneoutstls posts the small blind of $0.10
Cincy_Kid_ES posts the big blind of $0.25
The button is in seat #4
*** HOLE CARDS ***
Dealt to Cincy_Kid_ES [3c 7h 5h 6d]
Straight French calls $0.25
The_Dealer_No1 folds
LuckyHorshoe raises to $1.10
oneoutstls folds
Cincy_Kid_ES raises to $3
Straight French folds
LuckyHorshoe calls $1.90
*** FLOP *** [Qh 9h Ah]
Cincy_Kid_ES checks
LuckyHorshoe bets $6.35
Cincy_Kid_ES has 15 seconds left to act
Cincy_Kid_ES calls $6.35
*** TURN *** [Qh 9h Ah] [4c]
LuckyHorshoe: no board pair!
Cincy_Kid_ES checks
LuckyHorshoe bets $11.70, and is all in
Cincy_Kid_ES calls $11.70
LuckyHorshoe shows [5d 3h 5c 3s]
Cincy_Kid_ES shows [3c 7h 5h 6d]
*** RIVER *** [Qh 9h Ah 4c] [2h]
LuckyHorshoe shows a straight, Five high
Cincy_Kid_ES shows a flush, Ace high
Cincy_Kid_ES wins the pot ($40.35) with a flush, Ace high
LuckyHorshoe is sitting out
*** SUMMARY ***
Total pot $42.45 | Rake $2.10
Board: [Qh 9h Ah 4c 2h]
Seat 1: 1forthehouse is sitting out
Seat 2: Straight French folded before the Flop
Seat 3: The_Dealer_No1 didn't bet (folded)
Seat 4: LuckyHorshoe (button) showed [5d 3h 5c 3s] and lost with a straight, Five high
Seat 5: oneoutstls (small blind) folded before the Flop
Seat 6: Cincy_Kid_ES (big blind) showed [3c 7h 5h 6d] and won ($40.35) with a flush, Ace high
-----------------------------------------------------------
This player was steaming at this point, so I had to call him down with the 7 high flush. I was wondering if this is good aggressive Omaha or just flat out stupid?