Access array elements throw different swf's

Hi there,

I need to access the elements of an array that is declared in the main swf(_level0). But I need to change it from another swf.
How can I do it??

So far I have this:

MAIN SWF:

var vector1:Array = [biblio_vid1, biblio_vid2, biblio_vid3, btn_1_4, biblio_vid4];

OTHER SWF:

var vector2:Array = _level0.vector1.slice();
trace(vector2); // undefined,undefined,undefined,undefined,undefined

Thanks!

as2 or as3?