When the board shows quads...

Hi. I'm looking for advice on how I played this hand.


Party Poker No-Limit Hold'em, $ BB (9 handed) FTR converter on zerodivide.cx

UTG :#A500AF(Villan)/ ($44.66)
UTG+1 ($24.05)
MP1 ($11.70)
MP2 ($33.95)
Hero ($45.60)
CO ($27.30)
Button ($21.25)
SB ($28.70)
BB ($46.75)

Preflop: Hero is MP3 with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $0.10.
<font color="#CC3333">UTG :#A500AF(Villan)/ raises to $0.5</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $3</font>, <font color="#666666">4 folds</font>, UTG :#A500AF(Villan)/ calls $2.50.

Flop: ($6.35) 8[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Villan checks, <font color="#CC3333">Hero bets $4</font>, Villan calls $4.

Turn: ($14.35) 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Villan bets $10</font>, Hero calls $10.

River: ($34.35) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Villan checks, Hero checks.

Final Pot: $34.35

Results in white below: <font color="#FFFFFF">
Villan has Th Tc (four of a kind, eights).
Hero has Kh Ks (four of a kind, eights).
Outcome: Villan wins $17.17. Hero wins $17.17. </font>

The Villan was a complete fish - one of the worst I've seen. Played Ace-rags constantly and had no concept of odds. I had a strong feeling that my kings were good until the river, where I was worried about him calling me down with Ace-rag. Did I play this one ok?