standard river fold part deux?

unfortunately river raiser is completely unknown.

Also, is the flop play bad? Most of the players at this table made very loose calls and I wanted to see how my hand developed on the turn.

Party Poker 5/10 Hold'em (6 max, 6 handed) FTR converter on zerodivide.cx (http://www.zerodivide.cx/converter)

Preflop: Hero is SB with Q/images/graemlins/club.gif, J/images/graemlins/club.gif. CO posts a blind of $5.
UTG calls, <font color="#666666">1 fold</font>, <font color="#CC3333">CO (poster) raises</font>, Button calls, Hero calls, BB calls, UTG calls.

Flop: (10 SB) T/images/graemlins/spade.gif, 7/images/graemlins/diamond.gif, Q/images/graemlins/diamond.gif <font color="#0000FF">(5 players)</font>
Hero checks, <font color="#CC3333">BB bets</font>, UTG calls, CO calls, Button calls, Hero calls.

Turn: (7.50 BB) 9/images/graemlins/heart.gif <font color="#0000FF">(5 players)</font>
<font color="#CC3333">Hero bets</font>, BB calls, UTG calls, CO folds, Button calls.

River: (11.50 BB) 4/images/graemlins/spade.gif <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, BB calls, UTG calls, <font color="#CC3333">Button raises</font>, Hero...