[vtkusers] Beginner (Help!)

[#THOMAS PAJOR#]

Hello , i m really new in the use of vtk, actually i m not very used to program neither...i try to run the Make your own visible woman examlpe by myself but i cannot, i managed to install vtk and build the dsw files, i dowloaded the scripts from the Make your own visible woman and here s what happens:
 
I try to run one of the bone#.tcl but it stucks at some place in the program returning me:
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Object named:reader, could not find requester method: SetDataExtent or method was called with incorrect arguments.
 
while executing
"reader SetDataExtent 0 511 0 511 1 3 0 0"
("eval" body line 1)
invoked from within
"eval reader SetDataExtent 0[expr $RESOLUTION - 1] 0 [expr $RESOLUTION - 1] $START_SLICE $END_SLICE 0 0"
(file "march.tcl" line 67)
invoked from within
"source march.tcl"
(file "C:\Documents and Settings.....visible human female\bone32.tcl" line 9)
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i found setdataextent to be one of the ImageReader public method so i guess it exists and i dont know about the arguments...
i dont know, maybe you have an idea about this problem?
 
Thanks anyway, 
Thomas Pajor