AJo flop MP and BDFD (nut flush). Raise for a free card?

[TJO]

SB is ~50/10/0.50 about 25 hands
BB is unknown.

UltimateBet 0.25/0.50 Hold'em (7 handed)

Preflop: Hero is UTG with A[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">Hero raises</font>, 4 folds, SB calls, BB calls.

Flop: (6 SB) 9[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">BB bets</font>, Hero????.

Should I raise to try to get a free card?

(and how do I get a converter to work with UB HHs?)