Multiple masks help?

I am trying to use this method here:
http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?forumid=15&catid=288&threadid=1410897&CFID=13151180&CFTOKEN=5df21005bb1feb31-2CD5FFB4-F67E-56DC-E1E8B1280EE0B55C&jsessionid=4830966da44a4398c212f6359546a572e3e3

to create an inversed mask of the shape I have drawn (lineTo) inside a movieClip…

my clip layout/nesting is as follows:

parent.parent clip (contentContainer)
—parent clip (faceContainer)–
-----lineContainer (holds the shape/object Im using for my source of the inverse mask
-----maskContainer (empty clip to hold the dynamically created clip from the inverse mask method above)
-----imageContainer (the place where the dynamically loaded image gets loaded into, and is ‘masked’ by the inversedMask method)

now this all works fine… except I want to add a mask to the parent clip thats holding these 3 nested clips…(faceContainer)… or even to the parent clip of that (contentContainer)…

but when I do so… and then invoke the inversedMask() method from above,…the whole imageContainer goes blank…

now since the only REAL masking is the maskContainer, masking the imageContainer… why cant I add a mask manualy or through AS to the faceContainer or the contentContainer clips?

I cant seem to figure it out…

any ideas or suggestion is helpful…

this ‘IS’ AS2 by the way…

thanks