1. First, open word2003 and move the mouse cursor to the top of the page where you want to add the starting page number.

2. Then click Insert in the options bar, find the separator in the drop-down bar, and then click Open.

3. In the separator dialog box that pops up, select the next page in the separator type, and then click OK.

4. Then find the view in the options bar and click the "Header and Footer" option in the drop-down menu bar.

5. Then move the mouse to the footer and click the "Connect to Previous" option in the header footer toolbar.

6. Then click Insert in the options bar and select Page Number in the drop-down bar to open it.

7. Click the "Format" option in the pop-up dialog box, then set the starting page number as 1 in the format dialog box, and click OK.

8. In this way, the starting page number is successfully set on any page of the document.