All of the macros Greg provided are based on the use of SEQ fields. You can either revert to the code I provided (as amended) or unlink the fields that Greg's macro creates. Either action should only be done once all you're other editing has finished. If you take the unlink approach and there are no other fields in the body of the document, you can unlink them with a macro as simple as:
Code:
Sub LockNums()
ActiveDocument.Fields.Unlink
End Sub