Hi Ed,

Using an { IF { PAGE } > # { = { PAGE } - # }  } field construction where #
is the number of the physical page preceeding the physical page on which you
want the numbering to start will resulting in the numbering starting on that
page with number 1.

You must use Ctrl+F9 to insert each pair of field delimiters { } and to
toggle them off after construction the field, use Alt+F9

Please post any further questions or followup to the newsgroups for the
benefit of others who may be interested.  Unsolicited questions forwarded
directly to me will only be answered on a paid consulting basis.
Hope this helps
Doug Robbins - Word MVP

Doug's solution will work if your document does not have a table of
contents. If you want a TOC, calculated page numbers will not work. Instead,
you'll need to insert a section break between pages 4 and 5 (in your
example). For the general technique, see
http://www.mvps.org/word/FAQs/Formatting/NumberingFrontMatter.htm

--
Suzanne S. Barnhill
Microsoft MVP (Word)