I don't know what to do here.

[rippyshoes]

PokerStars Game #7254380249: Omaha Pot Limit ($0.25/$0.50) - 2006/12/01 - 14:53:11 (ET)
Table 'Eulalia' 9-max Seat #6 is the button
Seat 1: mmagic ($51.60 in chips)
Seat 2: djjeffypoo ($30.50 in chips)
Seat 3: ministern ($52.75 in chips)
Seat 4: The Dad ($19.50 in chips)
Seat 5: RippyShoes ($57.20 in chips)
Seat 6: woody28 ($134.55 in chips)
Seat 7: Northstar001 ($25.85 in chips)
Seat 8: Perikles ($24.10 in chips)
Seat 9: the impostor ($23.25 in chips)
Northstar001: posts small blind $0.25
Perikles: posts big blind $0.50
*** HOLE CARDS ***
Dealt to RippyShoes [5s 5d Ac Jc]
the impostor: calls $0.50
mmagic: folds
djjeffypoo: folds
ministern: folds
The Dad: folds
RippyShoes: calls $0.50
woody28: folds
Northstar001: calls $0.25
Perikles: checks
*** FLOP *** [5c 4h Qs]
Northstar001: checks
Perikles: bets $0.55
the impostor: raises $2.45 to $3
RippyShoes: raises $3 to $6
*** SUMMARY ***
Total pot $8.55 | Rake $0.40
Board [5c 4h Qs]

Yes I know this is a fold pf, but once again in the middle of a nasty rush, aside from this should I be reraising here to define the original raisers hands? I was ready to fold in the event of a jam over the top but I'm unsure how to play this in general.