Lay down pocket queens?

Party Poker 1/2 Hold'em (8 handed) CP hand converter

Preflop: Hero is MP1 with Q[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img].
UTG calls, UTG+1 calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">5 folds</font>, UTG calls, UTG+1 calls.

Fairly standard raise on the preflop

Flop: (7.50 SB) 5[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, UTG+1 checks, <font color="#CC3333">Hero bets</font>, UTG calls, UTG+1 calls.

At this point, I think I'm betting to find out how sure the villains are about their hands.

Turn: (5.25 BB) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, UTG+1 checks, Hero checks.

Did I have this right? With 4 to a flush and two other players still in the hand, I'm assuming that someone's got a 4th spade.

River: (5.25 BB) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">UTG+1 bets</font>, Hero folds, UTG calls.

Now, with two other players still in and a flush on the board, I've assumed that one of the two had a [img]/images/graemlins/spade.gif[/img] higher than 3[img]/images/graemlins/spade.gif[/img] so I folded. Correct?

Final Pot: 7.25 BB