Does this seem like a simple spot?

POKERSTARS GAME #15841441949: HOLD'EM NO LIMIT ($0.05/$0.10) - 2008/03/08 - 20:26:07 (ET)
Table 'Sagitta V' 6-max Seat #6 is the button
Seat 1: sbartlett ($7 in chips)
Seat 2: NDLOBE ($9.30 in chips)
Seat 3: JonnyFull ($11.15 in chips)
Seat 4: pokerfritz ($8.45 in chips)
Seat 5: thijske ($21.80 in chips)
Seat 6: aznbluff1029 ($8.65 in chips)
sbartlett: posts small blind $0.05
NDLOBE: posts big blind $0.10
*** HOLE CARDS ***
Dealt to JonnyFull [Ad Kd]
JonnyFull: raises $0.30 to $0.40
pokerfritz: calls $0.40
thijske: calls $0.40
aznbluff1029: folds
sbartlett: calls $0.35
NDLOBE: folds
*** FLOP *** [5d 8c 7d]
sbartlett: checks
JonnyFull: bets $1.20
pokerfritz: folds
thijske: calls $1.20
sbartlett: folds
*** TURN *** [5d 8c 7d] [Ah]
JonnyFull: bets $2.50
thijske: calls $2.50
*** RIVER *** [5d 8c 7d Ah] [4h]
JonnyFull: checks
thijske: bets $4
JonnyFull: raises $3.05 to $7.05 and is all-in
thijske: calls $3.05
*** SHOW DOWN ***
JonnyFull: shows [Ad Kd] (a pair of Aces)
thijske: shows [6d 4d] (a straight, Four to Eight)
thijske collected $22.10 from pot

Should i have just called riv? Should i have folded riv? Looked like it might be a steal attempt and no way could i put him on the hand he had.
Does his range contain 66 A6. Is this a simple laydown??

and btw does ftr have a hand history converter?

Def don't raise river here. Are you really trying to fold out hands like 78 on the river here? On 10NL? He probably checks behind with 2p here.

Think u played it ok till turn. River is about evenly call/fold.

don't raise the river. for the converter, look on the column to the left under poker tools
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Don't c/r the river, nothing calls that you beat. You should have check/folded the river. Everything else is fine.