The printer that is going to publish my document says "there must be .125
inches extra all around on any pages that bleed so" I must "enlarge the
cover pages to be an extra .125 all around." How can this be done?

The original document was written as a single document of 134 pages. The
first page is a cover page and is all black with an image in it. The last
page, obviously, is the back cover page and it is also all black with an
image centered within it. How can this document be formatted so that its
contents stay the same but the front and back covers only are changed so as
to meet the printer's requirements for 'bleed'?

A caveat - I'm not particularly well versed in Word '07 so any instructions
must be of the sort one would use to explain something to a rather dull
rutabaga or maybe even senior level management. The instructions must be
explicit and detailed or it is highly likely won't understand.

Thanks!