TPTK line....

[Python49]

I haven't had much problems with TPTK in a long while. I'm pretty sure I butchered this line though. Can someone tell me their play on flop, turn, river and with plans for each?

I was checking turn because I did not want to pump a huge pot up with just TPTK and wanted to check/call turn and I assumed on river he checks behind with a hand I beat and I fold to another huge bet. I didn't do this though which was my mistake, some tilt from earlier, but even if I do check fold this river how's that line? If I was good on flop and turn this river looks like a blank.

Party Poker No-Limit Hold'em, $ BB (6 max, 5 handed) converter

Hero ($429.50)
MP ($511.38)
Button ($117.40)
SB ($392)
BB ($344.25)

Preflop: Hero is UTG with Q[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $2.
<font color="#CC3333">Hero raises to $15</font>, MP calls $15, <font color="#666666">1 fold</font>, SB (poster) calls $13, <font color="#666666">1 fold</font>.

Flop: ($49) Q[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets $40</font>, MP calls $40, SB calls $40.

Turn: ($169) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">MP bets $100</font>, SB folds, Hero calls $100.

River: ($369) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP calls $356.38 (All-In), Hero calls $274.50 (All-In).

Final Pot: $999.88

Results in white below: <font color="#FFFFFF">
Hero has Qs As (two pair, queens and fours).
MP has 3s 3d (full house, threes full of fours).
Outcome: MP wins $999.88. </font>