If you have lost, broken, or misplaced your original Microsoft Office or
Microsoft Publisher installation CD, you can order replacement media from
Microsoft.
U.S. customers can contact the Microsoft Order Desk at the following phone
number:
(800) 360-7561, Monday through Friday, 5:00 A.M. to 7:00 P.M. Pacific time.
Canadian customers can contact the Canadian Order Desk at the following
number:
(800) 933-4750, Monday through Friday, 5:00 A.M. to 7:00 P.M. Pacific time.
As always, you should have some way of providing proof of purchase (e.g.
receipt) for the software you purchased.
***SOURCE:
Knowledge base article: 302822 How to order a replacement CD for Microsoft
Office
http://support.microsoft.com/default.aspx?scid=kb;EN-US;302822
Hope that helps...
Aaron Rykhus, MCP, MCDST
Online Support Engineer
Microsoft Corporation