It will all be self-explanatory once the draft starts.
If you rank the players yourself, Yahoo takes them off your list as they are drafted. If you don't, Yahoo takes them off the list that they have there now, based on their rankings.
I believe you get 90 seconds to make your pick. If you don't manually pick within 90 seconds, Yahoo will pick for you, taking the next player on the list - either your list if you've ranked the players yourself, or their list if you haven't.
You don't have to go by your list, either, maeaning you don't have to pick the player you have ranked next when your turn comes.
Just log into the draft early, and you'll see how it works.
We'll all be there; they even have a chatroom set up so we can talk to each other while it's going on.
