Any ideas on this hand guys...
------HAND 5------
Game #1904501293: Hold'em NL (2000/4000) - 2006/03/17 - 00:17:30 (BST)
Table "Tourney 2145640 - 1" Seat 2 is the button.
Seat 2: Alcalmak (52540.03 in chips)
Seat 3: Sim121235 (130628.64 in chips)
Seat 4: RussQPR (88585.72 in chips)
Seat 5: 1catfunt (86733.12 in chips)
Seat 6: Hionly (158567.07 in chips)
Seat 7: Ransdam1 (23910 in chips)
Seat 9: __eddie__ (129085.72 in chips)
Seat 10: Karma_ace (24449.70 in chips)
Sim121235: posts the ante 500
RussQPR: posts the ante 500
1catfunt: posts the ante 500
Hionly: posts the ante 500
Ransdam1: posts the ante 500
__eddie__: posts the ante 500
Karma_ace: posts the ante 500
Alcalmak: posts the ante 500
Sim121235: posts small blind 2000
RussQPR: posts big blind 4000
----- HOLE CARDS -----
dealt to RussQPR [

]
1catfunt: folds
Hionly: folds
Ransdam1: folds
__eddie__: folds
Karma_ace: folds
Alcalmak: folds
Sim121235: raises to 8000
RussQPR: calls 4000
----- FLOP ----- [

]
Sim121235: bets 4000
RussQPR: raises to 16000
Sim121235: calls 12000
----- TURN ----- [

][

]
Sim121235: checks
RussQPR: bets 12000
Sim121235: calls 12000
----- RIVER ----- [

][

]
Sim121235: bets 94128.64 and is all-in
RussQPR: is all-in 52085.72
Returned uncalled bets 42,042.92 to Sim121235
----- SHOW DOWN -----
Sim121235: shows [

] (A Flush, King high)
RussQPR: shows [

] (A Flush, Queen high)
Sim121235 collects 180171.44 from Main pot
----- SUMMARY -----
Total pot 180171.44 Main pot 180171.44 Rake 0
Board [

]
Bit deflated going out so early in a final table. I don't get to many but was playing confidently and was hoping to go all the way in this one.
Should I have raised more on the flop? I was pretty certain I was ahead but would have liked to have taken the pot there. Maybe a bigger bet on the turn?
I didn't know what to think when he went all in on the river but called straight away in the heat of the moment sort of thing never thinking whether he had a flush that could beat mine
Any help would be appreciated.
Cheers, Russ