vStrip0.8f css Decryption problem

[crOOk]

Hey, I forgot to decrypt when ripping the US-DVD "Heist". I'm having a hard time decrypting the files on my harddisk. These are my vStrip0.8f settings:

[Input]
NumFiles=1
F0=C:\VIDEO_TS\vts_01_1.vob
OfsPackets=19930
NumPackets=2575822
MaxSync=2048
PadGuess=2
SameGuess=2
PercentageGuess=75
KeySearch=0
ASPIMode=0
IsVOB=1

[IFO]
IFOName=C:\DVD\h\VIDEO_TS\vts_01_0.ifo
IFOChainIdx=0
NumKeepCells=28
K0=259
K1=515
K2=771
K3=1027
K4=1283
K5=1539
K6=1795
K7=2051
K8=2307
K9=2563
K10=2819
K11=260
K12=516
K13=772
K14=1028
K15=1284
K16=1540
K17=1796
K18=2052
K19=2308
K20=2564
K21=2820
K22=3076
K23=3332
K24=3588
K25=3844
K26=4100
K27=4356

[Output]
Demacro=1
FrameRate=0
AspectRatio=0
NumOutputs=1
NumRemaps=0

[Output0]
FileName=C:\VIDEO_TS\1.vob
FileSize=0
Split=0
Append=0
Demux=0
AC3Header=0
PCMHeader=0
KeepGOPs=0
DVD2AVI=0
SaveSaveStreams=0
NumSaveStreams=0

When I start the process the program tries to find the key for about 10 minutes and then gives up. A message appears which says that vStrip couldn't decrypt or something. I'd really appreciate some help since I've never had to use the tool before.
Maybe someone who owns the HEIST (US) dvd could just tell me the key if that would work.

[maven]

try setting the keysearch parameter (2/2/75) to (1/1/75) instead.

[crOOk]

I set the values to 1/1/75, I also tried 1/1/65 and 1/1/50, but none of it did any good. Is it possible that the stream cannot be decrypted anymore? I copied the files with smartripper and merged them into 1 file.

[maven]

if none of these work, then getting the key via ASPI-calls to the DVD-rom seens to be the only option (e.g. dvddecrypter or maybe smartripper from the original dvd)