AA sucking out vs my flopped straight, did I do anything wrong?

$100 NL 10 handed on PP

Table Table 37167 (Real Money) -- Seat 3 is the button
Total number of players : 10
Seat 1: simonh222 ( $99.46)
Seat 3: BDoodles ( $142.89)
Seat 5: eddie101 ( $98)
Seat 6: tiger500 ( $29.69)
eddie101 posts small blind (0.50)
tiger500 posts big blind (1)
** Dealing down cards **
Dealt to BDoodles [ 7 [img]/images/graemlins/club.gif[/img], 8 [img]/images/graemlins/heart.gif[/img] ]
simonh222 calls (1)
BDoodles calls (1)
eddie101 calls (0.50)
tiger500 checks.
** Dealing Flop ** : [ T [img]/images/graemlins/spade.gif[/img], 6 [img]/images/graemlins/spade.gif[/img], 9 [img]/images/graemlins/heart.gif[/img] ]
eddie101 checks.
tiger500 bets (4)
simonh222 calls (4)
BDoodles raises (20) to 20
tiger500 raises (24.69) to 28.69
tiger500 is all-In.
2 others fold.
BDoodles calls (8.69)
** Dealing Turn ** : [ K [img]/images/graemlins/spade.gif[/img]]
** Dealing River ** : [ 7 [img]/images/graemlins/spade.gif[/img] ]
Board: [ T [img]/images/graemlins/spade.gif[/img] 6 [img]/images/graemlins/spade.gif[/img] 9 [img]/images/graemlins/heart.gif[/img] K [img]/images/graemlins/spade.gif[/img] 7 [img]/images/graemlins/spade.gif[/img] ]
BDoodles balance $113.20, lost $29.69 [ 7c 8h ] [ a straight, six to ten -- Ts,9h,8h,7c,6s ]
tiger500 [ A [img]/images/graemlins/spade.gif[/img] A [img]/images/graemlins/heart.gif[/img] ] [ a flush, ace high -- As,Ks,Ts,7s,6s ]