This web site will be gone eventualy so they probably will not be able to access its  information. I would recommend downloading to a disk web site info such as this one re instructions fro those left behind. Leave it in an accessable place and label it instructions for those left behind. You never know it could happen before you think. This is one site. Someone posted another that was very professionaly done with a blue background but I am tired and I can't seem to find it. Funny how time flies, I thought I just read it a couple days ago.
 
http://www.lamblion.us/2008/09/jesus-came-whats-next.html