Every week after the LVH or whatever they're called now posts the lines for the super contest (usually Wednesday), they are posted here in a thread.
You have until Sunday morning to post your picks in that same thread. For the majority of the contest everyone's picks are visible to everyone, but come crunch time, the leaders will send their picks in via PM so there's no copycatting. Also, I don't believe you can make changes once you've posted your picks so if injuries etc are important to your style of handicapping, you may want to wait until the last hour. Also, that allows you to follow the line moves at the various sharper books.
It will all be explained again as we get closer to Week 1.