NL10 Overplayed top pair???

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Villain was up 1.5 buyins already, so either he was a lucky fish or a solid player.

Preflop. I don't like raising hands like AK from UTG. Just to avoid playing raised pots OOP. Is this -EV?

My turn bet is weak, I know. I was hoping he would either raise or fold. It didn't really let me narrow his hand range. Sucked, pretty much.

River. Should I put out another value bet? Or just check, is top pair ever good here?

Full Tilt Poker, $0.05/$0.10 NL Hold'em Cash Game, 8 Players
LegoPoker Hand History Converter

SB: $10.15
BB: $13.30
Hero (UTG): $10
UTG+1: $6.10
MP1: $3.85
MP2: $1.90
CO: $13.60
BTN: $27.40

Pre-Flop: K[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img] dealt to Hero (UTG)
Hero calls $0.10, 4 folds, BTN calls $0.10, <font color="red">SB raises to $0.30</font>, BB folds, Hero calls $0.20, BTN calls $0.20

Flop: ($1) K[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $0.80</font>, BTN calls $0.80, SB folds

Turn: ($2.60) J[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $1.50</font>, BTN calls $1.50

River: ($5.60) 3[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero ?