Top pair good kicer, with a flush out there

[plummy1013]

No reads as of yet. I'll ask my questions about the hand after you have seen what happened.

PokerStars 0.25/0.50 Hold'em (10 handed) converter

Preflop: Hero is MP3 with T[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
UTG calls, UTG+1 calls, <font color="#666666">2 folds</font>, MP2 calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">3 folds</font>, BB calls, UTG calls, UTG+1 calls, MP2 calls.

Flop: (10.40 SB) A[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
BB checks, UTG checks, UTG+1 checks, MP2 checks, <font color="#CC3333">Hero bets</font>, BB folds, UTG calls, UTG+1 calls, MP2 calls.

Turn: (7.20 BB) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
UTG checks, UTG+1 checks, MP2 checks, <font color="#CC3333">Hero bets</font>, UTG calls, UTG+1 calls, <font color="#CC3333">MP2 raises</font>, Hero calls, UTG folds, UTG+1 calls.

River: (14.20 BB) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG+1 checks, MP2 checks, Hero checks.

Final Pot: 14.20 BB

Results in white below: <font color="#FFFFFF">
UTG+1 has Jc Jh (flush, king high).
MP2 has 7s 7h (three of a kind, sevens).
Hero has Th Ah (one pair, aces).
Outcome: UTG+1 wins 14.20 BB. </font>

My question is, should I have checked the turn? Or once I was check raised should I have folded? I was planning on folding to a bet on the river, but as you can see one never came. Comments on the rest of the hand are welcome. Thanks in advance for your help.

-Plummy1013