Word doesn't support two page numbering schemes in the same document. You can do the 'y' parts of both fairly easily, plus the 'x' part for the footer; it's the 'x' part for the header that provides the complication. For that, you can:
• Create a field coded along the lines of {SET Sctn# {SECTIONPAGES}} in each Section's header (which must be unlinked from the previous Section's header), where # is the Section #.
• For Sections 2 & later, insert a field coded along the lines of {={PAGE}-Sctn1 \# 0}, {={PAGE}-Sctn1-Sctn2 \# 0}, etc. to generate the 'x' part. For Section 1, you can use a simple {PAGE} field.

Note: The field brace pairs (i.e. '{ }') for the above examples are all created in the document itself, via Ctrl-F9 (Cmd-F9 on a Mac); you can't simply type them or copy & paste them from this message. Nor is it practical to add them via any of the standard Word dialogues. The spaces represented in the field constructions are all required.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]