AKo again, but heavy action PF makes me nervous

Full Tilt Poker Game #350167421: Table Gibson - $0.10/$0.25 - No Limit Hold'em - 16:32:26 ET - 2005/12/23
Seat 1: larist ($8.50)
Seat 3: HJB29 ($17.35)
Seat 4: DeuceMD ($21.55)
Seat 5: ZKhhs ($14.90)
Seat 7: blazin munchies ($16.10)
Seat 8: <font color="red"> Hero </font> ($24.90)
Seat 9: jjohnnya ($10.95)
jjohnnya posts the small blind of $0.10
larist posts the big blind of $0.25
The button is in seat #8
*** HOLE CARDS ***
Dealt to <font color="red"> Hero </font> [A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img]]
HJB29 raises to $0.50
2 folds.
blazin munchies calls $0.50
<font color="red"> Hero </font> raises to $1.50
jjohnnya raises to $5.75
larist folds
HJB29 calls $5.25
blazin munchies folds
<font color="red"> Hero </font> calls $4.25
*** FLOP *** [J[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/diamond.gif[/img]]
jjohnnya bets $5.20, and is all in
<font color="red"> Hero </font> folds.

I think the flop fold is clear, but should I continue raising preflop, or should I just call and make my move based on the flop?