I have created a fax template. It consists of a protected form. The
date and time fields are auto text fields that show the currant date
and time. The attention and subject are fillin fields where you user
enters data. With all this said I am having trouble with the 'sent
number of pages' field. This should be an AutoText field to insert the
total number of pages of the document, similar to the date and time
fields.

My approach was, Insert > Field > select Numpages from the field names option.
When I do this it gives the correct number of pages. But how do I get
it to automate this, ie when I type a message into my fax and it goes
on to page 2 of the document I see that the 'sent number of pages'
field hasn't changed, its still showing 1. The 'sent number of pages'
title is in a table. When implemented corrected I expect to get the
total number of pages showing correctly when the document is protected
via the forms toolbar.
How can I get this to automatically update the page number when my
typing goes on to page 2 of the document?