How do you max this rivered FH against probable flush?

[Unarmed]

$5 PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (9 handed)

Hero (t1500)
UTG (t1190)
UTG+1 (t1460)
MP1 (t1230)
MP2 (t1610)
MP3 (t1850)
CO (t1460)
Button (t1690)
SB (t1510)

Preflop: Hero is BB with 8[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/diamond.gif[/img].
UTG calls t20, <font color="CC3333">UTG+1 raises to t40</font>, MP1 folds, MP2 folds, MP3 calls t40, CO folds, Button folds, SB folds, Hero calls t20, UTG calls t20.

Flop: (t170) A[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/club.gif[/img] <font color="blue">(4 players)</font>
<font color="CC3333">Hero bets t160</font>, UTG folds, UTG+1 calls t160, MP3 folds.

Turn: (t490) Q[img]/images/graemlins/club.gif[/img] <font color="blue">(2 players)</font>
Hero checks, <font color="CC3333">UTG+1 bets t80</font>, Hero calls t80.

River: (t650) 8[img]/images/graemlins/heart.gif[/img] <font color="blue">(2 players)</font>
Hero ???

Accepting criticism on the turn play as well if you disagree.
Thx.