is it possible to merge 2 archives together as I need to be able to search all the archives and there are 2 separate archives due to moving to new servers.

Also, the current archive file all of sudden has changed the display format of the dates in the archive.  when you did a search on the archive it would display month/day/year and now for the last week it is showing date and time. I need to have it set back to month/day/year