Stars 10-table $22: Nice draw on the flop

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PokerStars No-Limit Hold'em Tourney, Big Blind is t400 (9 handed) converter

SB (t5027)
Hero (t10796)
UTG (t6344)
UTG+1 (t3180)
MP1 (t6919)
MP2 (t18701)
MP3 (t6347)
CO (t13824)
Button (t23745)

Preflop: Hero is BB with 2[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls t400, <font color="#666666">3 folds</font>, CO calls t400, <font color="#666666">1 fold</font>, SB completes, Hero checks.

Flop: (t1600) T[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets t1200</font>, UTG+1 folds, <font color="#CC3333">CO raises to t2800</font>, <font color="#CC3333">SB raises to t4602</font>, Hero ???

Reads:
My Image: Very tight preflop, aggressive postflop.
SB: Not at the table for long, no reads.
CO: Tight preflop in EP, maybe a little overlimpy in LP. Have not seen enough postflop play to have a reliable read, most likely solid postflop.

I felt like CO's raise was a better flush draw than mine -- or a set (I figured he would bet more with something like AT) -- and SB's reraise all-in was top pair. I was worried that my flush outs were dirty and that I couldn't make CO fold with all the money in the pot.