I just joined the table, mybe 5 mins?. I was worried about FD but still checked anyway, right? wrong?

***** Hand History for Game 8019090342 *****
$50 USD NL Texas Hold'em - Monday, April 27, 05:05:22 EDT 2009
Table Table 125486 (No DP) (Real Money)
Seat 4 is the button
Total number of players : 10
Seat 5: Ehtna ( $50.45 USD )
Seat 9: Marbleboy888 ( $33.19 USD )
Seat 2: PotSmasha ( $25.34 USD )
Seat 1: WobbDogga ( $32.77 USD )
Seat 6: benni_ffm ( $10 USD )
Seat 7: bloukk ( $43.60 USD )
Seat 8: delete461 ( $10.44 USD )
Seat 4: gocoffeecup ( $3.62 USD )
Seat 10: marrybear ( $11.85 USD )
Seat 3: vilvon ( $50 USD )
Ehtna posts small blind [$0.25 USD].
benni_ffm posts big blind [$0.50 USD].
** Dealing down cards **
Dealt to Marbleboy888 [ Ac As ]
bloukk folds
delete461 folds
Marbleboy888 raises [$2 USD]
marrybear folds
WobbDogga calls [$2 USD]
PotSmasha folds
vilvon folds
gocoffeecup folds
Ehtna folds
benni_ffm folds
** Dealing Flop ** [ Kd, Ad, 4c ]
Marbleboy888 checks
WobbDogga checks
** Dealing Turn ** [ 5c ]
Marbleboy888 bets [$2.26 USD]
WobbDogga calls [$2.26 USD]
** Dealing River ** [ 9h ]
Marbleboy888 bets [$6.60 USD]
WobbDogga folds
Marbleboy888 does not show cards.
Marbleboy888 wins $15.41 USD