Villain is 49/1.6/.8 after 150 hands with 40 WTSD. I was torn between bet/fold and check/fold. Remember he probably checks behinds with a lot of pocket pairs (it seems that way from his stats at least). He's calling with any ace.
Party Poker 10/20 Hold'em (6 max, 6 handed)
pokerhand.org hand converter
Preflop: Hero is CO with J[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
UTG calls, <font color="#666666">
1 fold</font>, <font color="#CC3333">Hero raises</font>, Button calls, <font color="#666666">
2 folds</font>, UTG calls.
Flop: (7.50 SB) 2[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets</font>, Button calls, UTG folds.
Turn: (4.75 BB) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Button calls.
River: (6.75 BB) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Final Pot: 6.75 BB