Hi Tony,
There are various way of doing this, depending on the document structure.
For example, if there's no connection between the content of pages 1 & 2, you could insert a "Next Page" Section break at the foot
of that page, then go to the 2nd page and use File|Page Setup|Layout and check the 'different first page' option (for 'this section'
only). You could then insert your header into the header of page 2.
Alternatively, if you need the text to flow seamlessly from pages 1-3, you could use a field code in the header, like:
{IF{PAGE}= 2 "Your page header goes here"}
This would work equally well even if there was no connection between the content of pages 1, 2 & 3.
Note: The field brace pairs (ie '{ }') for the above example are created via Ctrl-F9 - you can't simply type them or copy & paste
them from this message.
Yet another way, if there's no connection between the content of pages 1, 2 & 3, could be to insert "Next Page" Section breaks
between pages 1&2 and 2&3, with the headers for Sections 2 & 3 formatted so they're not 'same as previous'. Then insert your header
into the header of page 2.