Resetting Page Numbers

I've made a photo book with a section in the middle where I may wish to use different images.  I want to create a separate file that contains only those alternate images/pages with the page numbers reflected correctly.  Some of the images may remain the same within that section so I did a Save As and deleted all spreads on either side of the section.  Now those pages instead of being numbered 98-110 are 2-14.  Is there any way I can start numbering for these pages at 98?  This will make it easier for the editor to identify where in the book the alternate version would go.  If this isn't possible, I'll need to delete the Parent Page associated with these pages (I think) and insert text boxes with the number manually typed in.  I'm only able to delete one of the 2 Parent Page icons in the spread.  The other won't go into the Trash when I drag it down.  Why is this?  Thanks.