I think TPTK play is the weakest part of my game, and I would like some critisism on this play. No reads on SB.

Party Poker No-Limit Hold'em, $ BB (6 max, 5 handed) internettexasholdem.com

Button ($1061.80)
SB ($407.40)
BB ($137.30)
UTG ($96)
Hero ($577)

Preflop: Hero is MP with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $2.
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $10</font>, <font color="#666666">1 fold</font>, SB (poster) calls $8, <font color="#666666">1 fold</font>.

Flop: ($24) 2[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $15</font>, SB calls $15.

Turn: ($54) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $25</font>, <font color="#CC3333">SB raises to $75</font>, Hero calls $50.

River: ($204) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $100</font>, Hero calls $100.

Final Pot: $404

Results in white below: <font color="#FFFFFF">
SB has 7d Kd (two pair, kings and sevens).
Hero has Ad Kh (one pair, kings).
Outcome: SB wins $404. </font>

I realize how bad SB's play was, but was calling the turn river a poor play?