well, there are a few different answers to this.
one of which (and i'll need someone to clarify or embellish me on this ) would be to flatten your drawing, hiding the hidden lines. You can use the SOLVIEW and SOLDRAW commands for this.
now, im not sure if this is what you're trying to do exactly, because you didn't mention if you were rendering your model or not, but, in case it is... , it would be easier (in my opinion) to save an image of the rendered model and then just insert that into word. to do this, render the drawing and then either type SAVEIMG or (if you're on 2007) right click and save as. then you can just insert it where you need it.