6$ SNG ITM play: Stop n go with weak ace, is this ok?

[illph]

Party Poker
No Limit Holdem Tournament
Blinds: t300/t600
3 players

Button (5385)
Hero (5150)
BB (9465)

Converter

Pre-flop: (3 players) Hero is SB with 7[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img]
Button calls t600 <font color="aaaaaa">(pot was t900)</font>, <font color="#cc0000">Hero raises to t2700</font>, BB folds, Button calls t1800 <font color="aaaaaa">(pot was t3600)</font>.

Flop: T[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/club.gif[/img] (t6000, 2 players)
<font color="#cc0000">Hero is all-in t2750</font>, Button calls t2750 <font color="aaaaaa">(pot was t8750)</font>.

Turn: 3[img]/images/graemlins/heart.gif[/img] (t11500, 1 player + 1 all-in - Main pot: t11500)


River: J[img]/images/graemlins/diamond.gif[/img] (t11500, 1 player + 1 all-in - Main pot: t11500)


Results:
Final pot: t11500

I didn't know what to do there, maybe raise less preflop? Check/fold the flop?
Thanks.

edit: Sry, hand converter messed up, I think.