So my steal raise meets resistance

I know this hand was poorly played, especially on the river.

Should I have thought of firing another shot on that turn, or raising a nice amount on the river? I was sure I was behind to a flush on the turn, but the river bet was so little, I felt compelled to call it.

PokerStars No-Limit Hold'em Tourney, Big Blind is t400 (9 handed) FTR converter on zerodivide.cx (http://www.zerodivide.cx/converter)

UTG (t16919)
UTG+1 (t6659)
MP1 (t4443)
MP2 (t6018)
MP3 (t3660)
Hero (t9860)
Button (t9900)
SB (t15825)
BB (t13013)

Preflop: Hero is CO with 6/images/graemlins/heart.gif, 7/images/graemlins/heart.gif.
<font color="#666666">4 folds</font>, MP3 calls t400, <font color="#CC3333">Hero raises to t1200</font>, <font color="#666666">2 folds</font>, BB calls t800, MP3 folds.

Flop: (t2600) 4/images/graemlins/club.gif, 7/images/graemlins/club.gif, K/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets t1200</font>, BB calls t1200.

Turn: (t5000) J/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

River: (t5000) 7/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets t400</font>, Hero calls t400.

Final Pot: t5800

Looks fine, the river probably didn't help him, so you are probably either WA/WB, I'd call this.