High pair weak kicker HU

[Isura]

I'd like comments on all parts of this hand. How is check-raising the flop, is it better to bet out? Am I being bluffed out of the pot more than not on the river?

Party Poker 1/2 Hold'em (7 handed) converter

Preflop: Hero is BB with 8[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/spade.gif[/img].
<font color="#666666">4 folds</font>, Button calls, <font color="#666666">1 fold</font>, Hero checks.

Flop: (2.50 SB) 4[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, <font color="#CC3333">Hero raises</font>, Button calls.

Turn: (3.25 BB) Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Button calls.

River: (5.25 BB) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, Hero folds.

Final Pot: 6.25 BB