As far as I can tell, if you click on an email link in the left-hand menu, you will get the following columns : Importance, Message Status, Flag, Attachment, From, subject, Date and Size. You can also right-click and choose to show Retention Category, Auto Preview and Preview Pane.
I presume the user wants to show the From field relating to an archived mail? It should already be there. I cannot see any way of customizing the Column Headers.
Mark