PL river normally good call or no?

[prodonkey]

Full Tilt Poker
No Limit Omaha Ring game
Blinds: $0.50/$1
7 players
Converter

Pre-flop: (7 players) Hero is UTG with 5[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/diamond.gif[/img]
<font color="#cc0000">Hero raises to $2</font>, UTG+1 folds, MP1 calls, 2 folds, SB calls, BB folds.

Flop: 7[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img] 2[img]/images/graemlins/heart.gif[/img] ($7, 3 players)
SB checks, <font color="#cc0000">Hero bets $6</font>, MP1 calls, SB folds.

Turn: 6[img]/images/graemlins/club.gif[/img] ($19, 2 players)
Hero checks, <font color="#cc0000">MP1 bets $19</font>, Hero calls.

River: 3[img]/images/graemlins/spade.gif[/img] ($57, 2 players)
Hero checks, <font color="#cc0000">MP1 bets $57</font>, Hero calls.

Results:
Final pot: $171


First off.. I was 99% sure he didn't have 34, so I knew my low was good.. I really considered check raising the turn. Who stacks the turn, and who folds/calls the river if not all in on the turn?