Someone has a huge leak in their game. Please tell me who.

Umm, the converter doesn't work so i'll try to make this as clear as I can.

$5 buyin 45 entrant multi-table SnG. About 12 left. Blinds are 100/200/25. Top 7 pay.

UTG (t12555)
MP (t7440)
CO (t1595)
Button (hero) (t1180)
SB (t3315)
BB (t10350)

Hero has J[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/heart.gif[/img]

UTG limps and its folded to us.

Our play is

1) push?
2) limp?
3) fold?

Me and a friend whom I know is a good player have drastically differing opinions. Please help one of us fix a leak.