QTR-Quadtone RIP

Hi Roy et al.,
I am running OSX 10.5.5 and the latest version of QTR.  I have just
constructed my first ink separation file.  I wrote over one of the ink
files in the exampleinks folder, as suggested.  Every time I drop it
on to the Drop-Quad-Profile applet I get the following error: 

Drop-Quad-Profile.app/Contents/Resources/script: line 17: quadprofile:
command not found

I get the same error with any of the ink files from the exampleinks
folder even when they are unmodified.  There is an earlier thread that
mentions this, but a suggestion was made to modify one of the code
lines in the applet.  I can get to the code since the applet will not
open in Script Editor.

Am I just doing something wrong or is there a problem with the applet?

Many thanks,

Ross.