Interesting hand from session review

No reads, figured i was WA/WB on the turn. Should i be bet/folding this river?

Party Poker 1/2 Hold'em (8 handed) FTR converter on zerodivide.cx

Preflop: Hero is UTG with J[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises</font>, <font color="#666666">4 folds</font>, Button calls, <font color="#666666">2 folds</font>.

Flop: (5.50 SB) 2[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Button calls.

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

River: (5.75 BB) 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, Hero calls.

Final Pot: 7.75 BB