This used to work in Word 2000, but in 2003, the footer page number will not
bring in the chapter number with the page number (e.g., 1-1, A-1). Here is
what I have done:
1. I've made the Heading for the chapter a Heading 1 style that is based on
an outline numbering format. In the Heading, the chapter + number appear as
automatically generated text (i.e.,"Chapter 1" is a field code).
2. When I go to insert the page number in the footer, I select the Insert,
Page Numbers command and click the Format button.
3. I select the Include chapter number check box, set the Chapter starts
with style as "Heading 1", and set the User separator "- (hyphen)," and set
the Start at option at "1" in the Page numbering group box.
4. When I click OK, I receive an error message: "There is no chapter number
to include in the caption or page number. To apply chapter numbers use the
Bullets and Numbering command on the Format menu and select a multilevel list
style that is linked to the Heading styles."

I've already set the Section to Heading 1 as explained in step 1 above. I'm
not sure what step I'm missing in this process, but it wasn't this difficult
previously to get that Chapter number into the footer with a hyphen before
the sequential page number.
Help!
Thanks.