my biggest leak... help!

[alphatmw]

i think my biggest weakness is the inability to play a strong ace out of position when im getting action.

#Game No : 3127164391
***** Hand History for Game 3127164391 *****
$25 NL Texas Hold'em - Thursday, December 01, 18:14:03 EDT 2005
Table Table 66531 (Real Money)
Dealt to Hero [ A[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] ]
1 fold
Hero raises [$1].
2 folds
MP calls [$1].
1 fold
Villian calls [$1].
2 folds
** Dealing Flop ** [ Q[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/club.gif[/img] ]
Hero bets [$3].
MP folds.
Villian calls [$3].
** Dealing Turn ** [ 7[img]/images/graemlins/heart.gif[/img] ]
Hero bets [$5].
Villian raises [$10].
Hero calls [$5].
** Dealing River ** [ K[img]/images/graemlins/spade.gif[/img] ]
Hero checks.
Villian is all-In [$10.40]
Hero folds.

check the turn? fold the turn raise? bet the river?
what should i have done if he flat called the turn bet? should i check or bet the river?