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Party Poker 15/30 Hold'em (10 handed)
converter
Preflop: Hero is UTG+2 with 7[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/spade.gif[/img].
<font color="#666666">
1 fold</font>, UTG+1 calls, Hero calls, <font color="#CC3333">MP1 raises</font>, <font color="#666666">
4 folds</font>, SB calls, BB calls, UTG+1 calls, Hero calls.
Flop: (10 SB) 9[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, BB checks, UTG+1 checks, <font color="#CC3333">Hero bets</font>, MP1 calls, SB folds, BB folds, UTG+1 folds.
Turn: (6 BB) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, MP1 calls.
River: (8 BB) 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>.
Final Pot: 9 BB
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I would think most Party 15/30 players would call your river bet with Ace-high, which I would estimate he has 70% of the time here. If villain likes showdowns, he is probably calling you with K-high, which seems to be his only other possible holding (i.e. KQ). He could have TT as well, but he is calling you with that regardless.
Bottom line: if he will fold KQ, the river bet makes sense; if not, check/fold.