Should i have put him allin...?

Mabye it was because it was my 7th hand in the tourney but after the turn i just had a feeling he had me. I thought he had a bigger set or the flush. Since i committed so much on the turn should i have pushed all my chips on the river?

PokerStars Game #2575618496: Tournament #12562659, Hold'em No Limit - Level I (10/20) - 2005/09/14 - 18:24:59 (ET)
Table '12562659 2' Seat #7 is the button
Seat 2: digitalk (1580 in chips)
Seat 3: NJKEV (1590 in chips)
Seat 4: Little Lick (1310 in chips)
Seat 5: usecarman (1250 in chips)
Seat 6: gr8jaja (1410 in chips)
Seat 7: Bigwaller (1340 in chips)
Seat 8: s13az3 (1540 in chips)
Seat 9: KingMe#1 (4790 in chips)
s13az3: posts small blind 10
KingMe#1: posts big blind 20
*** HOLE CARDS ***
Dealt to s13az3 [3d 3s]
digitalk: folds
NJKEV: folds
Little Lick: raises 60 to 80
usecarman: folds
gr8jaja: folds
Bigwaller: folds
s13az3: calls 70
KingMe#1: folds
*** FLOP *** [3h 6d Qd]
s13az3: checks
Little Lick: bets 160
s13az3: calls 160
*** TURN *** [3h 6d Qd] [4d]
s13az3: checks
Little Lick: bets 240
s13az3: raises 280 to 520
Little Lick: calls 280
*** RIVER *** [3h 6d Qd 4d] [Kh]
s13az3: checks
Little Lick: checks
*** SHOW DOWN ***
s13az3: shows [3d 3s] (three of a kind, Threes)
Little Lick: mucks hand
s13az3 collected 1540 from pot
*** SUMMARY ***
Total pot 1540 | Rake 0
Board [3h 6d Qd 4d Kh]
Seat 2: digitalk folded before Flop (didn't bet)
Seat 3: NJKEV folded before Flop (didn't bet)
Seat 4: Little Lick mucked [Ad Qs]
Seat 5: usecarman folded before Flop (didn't bet)
Seat 6: gr8jaja folded before Flop (didn't bet)
Seat 7: Bigwaller (button) folded before Flop (didn't bet)
Seat 8: s13az3 (small blind) showed [3d 3s] and won (1540) with three of a kind, Threes
Seat 9: KingMe#1 (big blind) folded before Flop

You had half of your chips in the pot when you could well have been beat, you definately player the river correctly with the check. Only way he calls there in my opinion is if you are beat (or if he was sitting on KQ). Not sure if you are wondering if you should have put them in to try and run him off? Believe me, if he had your hand beat I really don't think the all in would have scared him off. Hand like that if you think you may very well be beat then definately check-call the river.