it was on a freeroll with almost 10000 players and there were 564 left..

How did I play this?? obviously bad, but how can I improve..

PokerStars Game #5365601837: Tournament #26604406, Freeroll Hold'em No Limit - Level IX (300/600) - 2006/06/25 - 20:41:35 (ET)
Table '26604406 152' 9-max Seat #1 is the button
Seat 1: hinkydink (10893 in chips)
Seat 2: A.V.TACE (18296 in chips)
Seat 3: begood777 (40760 in chips)
Seat 4: GaboonVip02 (17332 in chips)
Seat 5: EKEKO (20304 in chips)
Seat 6: Crazy Chuck (5668 in chips) is sitting out
Seat 7: DrAces777 (13720 in chips)
Seat 8: SharpLuck (18560 in chips)
Seat 9: Rienaldinho (52200 in chips)
hinkydink: posts the ante 50
A.V.TACE: posts the ante 50
begood777: posts the ante 50
GaboonVip02: posts the ante 50
EKEKO: posts the ante 50
Crazy Chuck: posts the ante 50
DrAces777: posts the ante 50
SharpLuck: posts the ante 50
Rienaldinho: posts the ante 50
A.V.TACE: posts small blind 300
begood777: posts big blind 600
*** HOLE CARDS ***
Dealt to Rienaldinho [7c As]
GaboonVip02: folds
EKEKO: calls 600
Crazy Chuck: folds
DrAces777: folds
SharpLuck: calls 600
Rienaldinho: raises 1800 to 2400
hinkydink: folds
A.V.TACE: folds
Crazy Chuck has returned
begood777: calls 1800
EKEKO: calls 1800
SharpLuck: calls 1800
*** FLOP *** [Js 7d 5h]
begood777: checks
EKEKO: checks
SharpLuck: checks
Rienaldinho: bets 5400
begood777: calls 5400
EKEKO: calls 5400
SharpLuck: folds
*** TURN *** [Js 7d 5h]
begood777: bets 2400
EKEKO: calls 2400
Rienaldinho: calls 2400
*** RIVER *** [Js 7d 5h 7s]
begood777: bets 6000
EKEKO: folds
Rienaldinho: raises 35950 to 41950 and is all-in
begood777: calls 24510 and is all-in
*** SHOW DOWN ***
Rienaldinho: shows [7c As] (three of a kind, Sevens)
begood777: shows [Jc Jh] (a full house, Jacks full of Sevens)
begood777 collected 94770 from pot
Rienaldinho said, "wow vnh"
*** SUMMARY ***
Total pot 94770 | Rake 0
Board [Js 7d 5h 7s 4d]
Seat 1: hinkydink (button) folded before Flop (didn't bet)
Seat 2: A.V.TACE (small blind) folded before Flop
Seat 3: begood777 (big blind) showed [Jc Jh] and won (94770) with a full house, Jacks full of Sevens
Seat 4: GaboonVip02 folded before Flop (didn't bet)
Seat 5: EKEKO folded on the River
Seat 6: Crazy Chuck folded before Flop (didn't bet)
Seat 7: DrAces777 folded before Flop (didn't bet)
Seat 8: SharpLuck folded on the Flop
Seat 9: Rienaldinho showed [7c As] and lost with three of a kind, Sevens

and the next hand was this one.. DAMNN

PokerStars Game #5365653753: Tournament #26604406, Freeroll Hold'em No Limit - Level IX (300/600) - 2006/06/25 - 20:46:09 (ET)
Table '26604406 152' 9-max Seat #5 is the button
Seat 1: hinkydink (10093 in chips)
Seat 2: A.V.TACE (17796 in chips)
Seat 3: begood777 (94320 in chips)
Seat 4: GaboonVip02 (15932 in chips)
Seat 5: EKEKO (5486 in chips)
Seat 6: Crazy Chuck (12586 in chips)
Seat 7: DrAces777 (14270 in chips)
Seat 8: SharpLuck (15960 in chips)
Seat 9: Rienaldinho (11290 in chips)
hinkydink: posts the ante 50
A.V.TACE: posts the ante 50
begood777: posts the ante 50
GaboonVip02: posts the ante 50
EKEKO: posts the ante 50
Crazy Chuck: posts the ante 50
DrAces777: posts the ante 50
SharpLuck: posts the ante 50
Rienaldinho: posts the ante 50
Crazy Chuck: posts small blind 300
DrAces777: posts big blind 600
*** HOLE CARDS ***
Dealt to Rienaldinho [Ks Kd]
SharpLuck: calls 600
Rienaldinho: raises 1200 to 1800
hinkydink: folds
A.V.TACE: folds
begood777: calls 1800
GaboonVip02: calls 1800
EKEKO: calls 1800
Crazy Chuck: folds
DrAces777: folds
SharpLuck: calls 1200
*** FLOP *** [4d 9d Js]
SharpLuck: checks
Rienaldinho: bets 3000
begood777: raises 3000 to 6000
GaboonVip02: folds
EKEKO: calls 3636 and is all-in
SharpLuck: folds
Rienaldinho: raises 3440 to 9440 and is all-in
begood777: calls 3440
*** TURN *** [4d 9d Js]
*** RIVER *** [4d 9d Js 6s]
*** SHOW DOWN ***
Rienaldinho: shows [Ks Kd] (a pair of Kings)
begood777: shows [Ac 9h] (two pair, Aces and Nines)
begood777 collected 11608 from side pot
EKEKO: shows [2h 4h] (a pair of Fours)
begood777 collected 21258 from main pot
*** SUMMARY ***
Total pot 32866 Main pot 21258. Side pot 11608. | Rake 0
Board [4d 9d Js 6s Ah]
Seat 1: hinkydink folded before Flop (didn't bet)
Seat 2: A.V.TACE folded before Flop (didn't bet)
Seat 3: begood777 showed [Ac 9h] and won (32866) with two pair, Aces and Nines
Seat 4: GaboonVip02 folded on the Flop
Seat 5: EKEKO (button) showed [2h 4h] and lost with a pair of Fours
Seat 6: Crazy Chuck (small blind) folded before Flop
Seat 7: DrAces777 (big blind) folded before Flop
Seat 8: SharpLuck folded on the Flop
Seat 9: Rienaldinho showed [Ks Kd] and lost with a pair of Kings

You've got a hand that's easily dominated. Pass.