[Insight-users] how to load package in tcl for itk

[wavelethe at pku.org.cn]

after compiling SimpleLevelSetsExample seccessfully,
I was told that "Result:can't find package vtkinteraction" when i run View2DOutputInVTK.tcl in ASED 
Errorinfo: can't find package vtkinteraction while execting
"package require vtkinteraction" invoked from within "interp eval $interp $command"

I am newbie and learning them, and i need some direction
I have searched the file named "vtkinteraction", but only found one in vtkwrap directory

best regards
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