50NL A-K on a suited board

[Semtex]

villain was 26/6/1 through 50 hands. I really had no idea what I was doing in this hand. Should I just have folded flop? Comments on all streets appreciated.

PokerStars No-Limit Hold'em, $0.50 BB (7 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

SB ($49.50)
BB ($72.95)
Hero ($51.90)
MP1 ($47.75)
MP2 ($42.80)
CO ($58.15)
Button ($105.15)

Preflop: Hero is UTG with K[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Hero raises to $2</font>, <font color="#666666">1 fold</font>, MP2 calls $2, CO calls $2, <font color="#666666">1 fold</font>, SB calls $1.75, <font color="#666666">1 fold</font>.

Flop: ($8.50) 2[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets $7</font>, MP2 folds, CO folds, <font color="#CC3333">SB raises to $14</font>, Hero calls $7.

Turn: ($36.50) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $10</font>, <font color="#CC3333">Hero raises to $35.9</font>, SB calls $23.50 (All-In).

River: ($105.90) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $105.90