When you're ready to try out your rehabilitated stock bumper jack, these are instructions for the 1961, which had the same bumpers as 62 and 63:
http://www.imperialclub.com/Yr/1961/Ads/JackInstructions.jpg
These instructions were on a light grey medium cardstock and were adhered to the grey cardboard that was arrayed around the perimeter of the trunk. Gary Goers makes good reproduction cardboard panels for the trunk (not that you asked).