good read or stupid raise ?

[euri10]

except that I should not be in this hand as my hand isn't good enough to sustain a preflop raise, is it stupid to raise the preflop raiser on the flop ?

ps : i suspect a little problem with the converter in the result written on my opponent hands, cards are true but obviously it does not make this hand rank....or I'm drunk

PokerStars Pot-Limit Omaha High, $0.25 BB (8 handed) converter

Button ($24.50)
SB ($25)
BB ($19.55)
UTG ($6.10)
UTG+1 ($24.75)
MP1 ($58.40)
MP2 ($27.75)
Hero ($67.75)

Preflop: Hero is CO with 6[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/club.gif[/img]. UTG posts a blind of $0.25.
UTG (poster) checks, <font color="#666666">1 fold</font>, MP1 calls $0.25, <font color="#666666">1 fold</font>, Hero calls $0.25, <font color="#666666">1 fold</font>, <font color="#CC3333">SB raises to $1.5</font>, <font color="#666666">1 fold</font>, UTG folds, MP1 calls $1.25, Hero calls $1.25.

Flop: ($5) 7[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets $4.75</font>, MP1 folds, <font color="#CC3333">Hero raises to $19</font>, <font color="#CC3333">SB raises to $23.5</font>, Hero calls $4.50.

Turn: ($52) K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>

River: ($52) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $52

Results in white below: <font color="#FFFFFF">
SB has Ad Jd Ts Ah (flush, ace high).
Hero has 6c Kc 7c Tc (two pair, kings and tens).
Outcome: SB wins $52. </font>