This still might not be what you had in mind, but I'll take a shot.
It sounds more geometric or chart-like in nature, so I still think AutoShape
might work.
In the Print Layout View, select the symbol used to represent a folder.
This could be a "wmf" or "gif", or basic AutoShape rectangle. Select the
clip's properties, then in the placement of the clip/symbol layout, it is
crucial to select the "behind" option, preparing for the placement of future
text; and whatever might be added later. You can duplicate this same clip as
needed to form the "tree" or possibly even a "pyramid" form. By default the
copy will go to the center, where one should remain for each level. Then the
rest on either side can increase in numbers, towards the bottom. All should
be set to the back/behind text. Then instead of connectors, you could select
to draw a simple line, that ends with an arrow, on one end or both, as
needed. If the arrows are missaligned, this can be corrected by accessing
their properties, through "editing". All the lines should be placed to the
front, then the arrows will not clash with the "symbols" or "folders". A
problem might occur, in the process of placing folders to either side,
depending on what type of picture object is chosen, and the size; but it can
be done. None should be left to the default propeties, which are "In line
with text".
You might also check for pre-designed templates, at the Microsoft Download
Center. There might be something for business related documents.