When to give up on AK?

[realbad101]

Table is loose and passive. Did I wimp out on the turn? All advice / insults / random musings greatly appreciated...

Party Poker 0.50/1 Hold'em (10 handed)

Preflop: Confused is SB with A[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img]. MP3 posts a blind of $0.50. CO posts a blind of $0.50.
<font color="CC3333">UTG raises</font>, UTG+1 folds, UTG+2 folds, MP1 folds, MP2 folds, MP3 (poster) folds, CO (poster) folds, Button calls, <font color="CC3333">Confused 3-bets</font>, BB folds, UTG calls, Button calls.

Flop: (12 SB) 8[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/heart.gif[/img] <font color="blue">(3 players)</font>
<font color="CC3333">Confused bets</font>, <font color="CC3333">UTG raises</font>, Button calls, Confused calls.

Turn: (9 BB) 6[img]/images/graemlins/spade.gif[/img] <font color="blue">(3 players)</font>
Confused checks, <font color="CC3333">UTG bets</font>, Button calls, Confused folds.

River: (11 BB) K[img]/images/graemlins/heart.gif[/img] <font color="blue">(2 players)</font>
<font color="CC3333">UTG bets</font>, Button calls.

Final Pot: 13 BB