Can't reset the page numbering of a page footer

[ravl13]

Hi,



I'm using Word 2007, and I'm having a problem with the page footers:



The footer showing a page number of "1-13" is supposed to be the start of a new section of the book, and so it should be page "1-1". How can I fix the footer to say 1-1? I can't seem to find any relevant controls to let me do so; the "Different First Page" checkbox doesn't do what I want either - it wipes out the entire footer, which has some copyright text on it. (I blacked it out in the image).

Thanks!