It's pretty clear Hastings is holding the straight, however Tsarrast pushes top two pair on the turn when he picks up more outs with a flush draw.

Full Tilt Poker Game #6241969430: Table Eginton (6 max) - $200/$400 - Pot Limit Omaha Hi - 22:48:44 ET - 2008/04/30
David Benyamine adds $10,344
Seat 1: tsarrast ($47,975)
Seat 2: trex313 ($45,857)
Seat 3: ICallSoWhat ($89,395), is sitting out
Seat 4: Brian Hastings ($40,000)
Seat 5: CHUFTY ($15,597)
Seat 6: David Benyamine ($0), is sitting out
CHUFTY posts the small blind of $200
David Benyamine has returned
tsarrast posts the big blind of $400
The button is in seat #4
*** HOLE CARDS ***
trex313 raises to $1,400
Brian Hastings calls $1,400
CHUFTY folds
tsarrast has 15 seconds left to act
tsarrast calls $1,000
*** FLOP *** [5s 9c 6d]
tsarrast checks
trex313 checks
Brian Hastings bets $3,600
tsarrast has 15 seconds left to act
tsarrast calls $3,600
trex313 folds
*** TURN *** [5s 9c 6d] [4s]
tsarrast has 15 seconds left to act
tsarrast checks
Brian Hastings has 15 seconds left to act
Brian Hastings bets $10,400
tsarrast has 15 seconds left to act
tsarrast raises to $42,800
Brian Hastings calls $24,600, and is all in
tsarrast shows [6h Qs Ah 9s]
Brian Hastings shows [8h 8d 7d 5d]
Uncalled bet of $7,800 returned to tsarrast
*** RIVER *** [5s 9c 6d 4s] [9h]
tsarrast shows a full house, Nines full of Sixes
Brian Hastings shows a straight, Nine high
tsarrast wins the pot ($81,598) with a full house, Nines full of Sixes
Brian Hastings adds $40,000
*** SUMMARY ***
Total pot $81,600 | Rake $2
Board: [5s 9c 6d 4s 9h]
Seat 1: tsarrast (big blind) showed [6h Qs Ah 9s] and won ($81,598) with a full house, Nines full of Sixes
Seat 2: trex313 folded on the Flop
Seat 3: ICallSoWhat is sitting out
Seat 4: Brian Hastings (button) showed [8h 8d 7d 5d] and lost with a straight, Nine high
Seat 5: CHUFTY (small blind) folded before the Flop
Seat 6: David Benyamine is sitting out