Wtf am i doing with this river

[recallme]

To my left is the reason why i am sitting at this table, player to my right is unknown and the rest are party reg tags.


Party Poker
No Limit Holdem Ring game
Blinds: $10/$20
6 players
Converter

Stack sizes:
UTG: $2000
UTG+1: $2290
CO: $2128
Button: $2489
Hero: $6349
BB: $6304

Pre-flop: (6 players) Hero is SB with 5[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/heart.gif[/img]
UTG folds, UTG+1 calls, <font color="#cc0000">CO raises to $100</font>, Button calls, Hero calls, BB calls, UTG+1 calls.

Flop: T[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img] ($500, 5 players)
Hero checks, BB checks, UTG+1 checks, CO checks, <font color="#cc0000">Button bets $350</font>, Hero calls, 3 folds.

Turn: 7[img]/images/graemlins/club.gif[/img] ($1200, 2 players)
<font color="#cc0000">Hero bets $750</font>, Button calls.

River: 7[img]/images/graemlins/diamond.gif[/img] ($2700, 2 players)

What do you think about the hand? And plz tell me that i am c/f here