$25 kk meets an ace on turn

[darkcore]

maybe an easy one, but i'm new to no limit and while playing this hand i was wondering if i played it correct.
what should be my river line?
comments on other streets are appreciated, too.

Party Poker No-Limit Hold'em, $ BB (10 handed) FTR converter on zerodivide.cx (http://www.zerodivide.cx/converter)

UTG+1 ($43.57)
Hero ($63.98)
MP1 ($36.52)
MP2 ($24.63)
MP3 ($16.35)
CO ($8.25)
Button ($39.40)
SB ($10.25)
BB ($25)
UTG ($61.33)

Preflop: Hero is UTG+2 with K/images/graemlins/heart.gif, K/images/graemlins/spade.gif. SB posts a blind of $0.10.
<font color="#666666">1 fold</font>, UTG+1 calls $0.25, <font color="#CC3333">Hero raises to $0.75</font>, <font color="#666666">1 fold</font>, MP2 calls $0.75, MP3 calls $0.75, <font color="#666666">4 folds</font>, UTG+1 calls $0.50.

Flop: ($3.35) 5/images/graemlins/spade.gif, T/images/graemlins/heart.gif, 9/images/graemlins/diamond.gif <font color="#0000FF">(4 players)</font>
UTG+1 checks, <font color="#CC3333">Hero bets $2</font>, MP2 calls $2, MP3 calls $2, UTG+1 folds.

Turn: ($9.35) A/images/graemlins/club.gif <font color="#0000FF">(3 players)</font>
Hero checks, MP2 checks, MP3 checks.

River: ($9.35) 7/images/graemlins/diamond.gif <font color="#0000FF">(3 players)</font>

my turn.

[xorbie]

Raise more PF. Bet pot on the flop. Turn check is ok probably, but bet the river.

[dawade]

I'm new to NL cash games myself, but I make it at least 1.50 PF, and I pot the flop. I am not sure whether or not I'm checking this turn.

[Recliner]

Raise more preflop, any time you raise it should be at least $1. Pot the flop. Check is ok, bet river.

Is there an echo in here?

[pottie]

As played $5 on the river seems good, fold to a raise.