straight draw

[mr magoo]

Hi
how bad is this play? raiser bets the pot, should I fold this openended straight draw? How do I play a draw like this in NL, I've just started play NL and Im not realy shure how I should be thinking in a situation like this.
And if the preflop call was bad, ok. But how do I play a draw.. Any help please.

Party Poker No-Limit Hold'em, $2 BB (10 handed) converter

UTG+2 ($198.35)
MP1 ($196.5)
Hero ($195)
MP3 ($203)
CO ($164.55)
Button ($259.8)
SB ($84.8)
BB ($196.7)
UTG ($191)
UTG+1 ($211.45)

Preflop: Hero is MP2 with T[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/club.gif[/img]. Hero posts a blind of $2.
<font color="#666666">3 folds</font>, <font color="#CC3333">MP1 raises to $6</font>, Hero (poster) calls $4, MP3 calls $6, <font color="#666666">4 folds</font>.

Flop: ($21) 9[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">MP1 bets $20</font> Hero ??