Group Home - NFL Survivor - NFL.com
Good luck with picks this week. I am not sure when these actually have to be in as I have noticed that there will be a player who does not get his or her choice in by Thursday night and they still show up as having made a selection.
It looks like the rules allow you to pick a Survivor up to the point where they game starts on whatever day that actually is.
Official Rules - NFL Survivor - NFL.com