400NL Bad river, what to do?

[dirtytricks]

Villain is a TAGreg no specific reads 20/18

My image is TAG

Full Tilt Poker, $2/$4 NL Hold'em Cash Game, 5 Players
LegoPoker Hand History Converter

BTN: $486.55
Hero (SB): $436
BB: $908.20
UTG: $698.90
CO: $1,104.70

Pre-Flop: 4[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/club.gif[/img] dealt to Hero (SB)
UTG calls $4, <font color="red">CO raises to $20</font>, BTN folds, Hero calls $18, BB folds, UTG calls $16

Flop: ($64) 8[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] (3 Players)
<font color="red">Hero bets $49</font>, UTG folds, CO calls $49

Turn: ($162) Q[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $111</font>, CO calls $111

River: ($384) 7[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero?