John,
So your other pages are no longer effective? They have lost their power? ;-)
Maybe you meant a list of pages that were affected by changes. They changed
because of revisions.

Word has a built-in system for tracking changes. That's not good enough?

How are you entering the revision info in the footers?
How are the footers formatted or laid out?
Are you entering plain text in the footers? Or are you using, for instance,
text boxes for your data in the footers?
You could probably mine the data in the footers and reference the data in a
table at the beginning of the document.

Or just put the data in the table with hyperlinks to the areas of the
document that were changed and forget about the footer data.

Hi John.  Perhaps if you gave some more information.  You must remember that
Word does not consider "pages" the way normal human beings do.  Word has its
own view of "pages".  We have to work with that.  It may be possible to
automate something, but we would need very specific information from you.

What defines yor parameters?