KQs on flush draw K flop against early raiser (Party 55)

[Meatmaw]

1) Was the PF call ill-advised?

2) Since I am drawing to second best flush, was it reasonable to check-call? I have a feeling I should have bet out or check-raised, but am uncertain whether I should be trying to extract more chips from a flop that gives me a decent hand and good draw.

Party Poker No-Limit Hold'em Tourney, Big Blind is t30 (8 handed) converter

UTG (t815)
UTG+1 (t910)
MP1 (t1820)
MP2 (t923)
CO (t1137)
Button (t1970)
SB (t1300)
Hero (t1125)

Preflop: Hero is BB with Q[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">UTG raises to t60</font>, <font color="#666666">6 folds</font>, Hero calls t30.

Flop: (t135) 5[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets t30</font>, Hero calls t30.

Turn: (t195) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets t30</font>, Hero calls t30.

River: (t255) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets t30</font>, <font color="#CC3333">Hero raises to t90</font>, UTG calls t60.

Final Pot: t435