AJs missed flush but rivered TPTK

[sf340flier]

Villain was sLP which caused an alarm to sound on the turn. With the J coming on the river, I have to call, right?

Please feel free to comment on all rounds.

Party Poker 2/4 Hold'em (10 handed) converter

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

Flop: (5.50 SB) 9[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, CO calls.

Turn: (3.75 BB) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, Hero calls.

River: (7.75 BB) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets</font>, Hero calls.

Final Pot: 9.75 BB