50NL: AQo - 2 pair on flush board

[magog]

Poker Stars, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

BTN: $61.75
SB: $50.35
BB: $21.10
UTG: $90.50
Hero (MP): $69.65
CO: $10.80

Pre-Flop: Q[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] dealt to Hero (MP)
UTG folds, <font color="red">Hero raises to $2</font>, CO folds, BTN calls $2, SB calls $1.75, BB calls $1.50

Flop: ($8) 2[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img] (4 Players)
SB checks, <font color="red">BB bets $0.50</font>, <font color="red">Hero raises to $7.50</font>, BTN folds, SB calls $7.50, BB folds

Turn: ($23.50) Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $15</font>, <font color="red">SB raises to $40.85 and is All-In</font>, Hero calls $25.85

Villian was 24 / 7 / 2.3 over 41 hands.

I'm not used to deepish stacks (I'm a SnG player) so I don't know if I played this really badly. Should I have checked behind on the turn to control the pot size? Should I have bet less on the flop?

thanks (and sorry if this is a really basic hand - this was my first cash session)