(PP $6) Ace high, passive players, keep pounding?

[Quicksilvre]

Party Poker Limit Hold'em Tourney, Big Blind t15 (10 handed) converter

Button (t800)
SB (t800)
BB (t800)
UTG (t800)
UTG+1 (t800)
UTG+2 (t800)
MP1 (t800)
MP2 (t800)
MP3 (t800)
Quicksilvre (t800)

Preflop: Quicksilvre is CO with Q[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">UTG raises</font>, UTG+1 calls, <font color="#666666">2 folds</font>, MP2 calls, MP3 calls, <font color="#CC3333">Quicksilvre 3-bets</font>, <font color="#666666">1 fold</font>, SB calls, <font color="#666666">1 fold</font>, UTG calls, UTG+1 calls, MP2 calls, MP3 calls.

Flop: (18.83 SB, t282.5) K[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, UTG checks, UTG+1 checks, MP2 checks, MP3 checks, <font color="#CC3333">Quicksilvre bets</font>, SB calls, UTG folds, UTG+1 calls, MP2 calls, MP3 folds.

Turn: (11.41 BB, t342.5) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, UTG+1 checks, MP2 checks, <font color="#CC3333">Quicksilvre bets</font>, SB calls, UTG+1 calls, MP2 calls.

River: (15.41 BB, t462.5) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, UTG+1 checks, MP2 checks, <font color="#CC3333">Quicksilvre bets</font>, SB folds, UTG+1 folds, MP2 calls.

Final Pot: 17.4166666666667 BB (t522.50)

Did I play this correctly? I doubted that ace high was good against five players, but as no one raised me on the flop or turn, I was hoping to drag it down with one last bet.

PP has limit SnGs?

[Quicksilvre]

Yes, Virginia.