Word late binding

Question

Hello
can anybody help me?
I just write  an App to delete an Image into a wordfile which ist stored in a shape.
if I use office.interiop.word it would work fine.
but I have to use late binding and in that case I am not able to reference one single Shape because document.shapes returns a Comobject and I wait for an array
I hope I explain my problem not too complex....