Original Poster: you worked there during Christmas Peak, you saw the job board. What you saw is what you get. You'll start on the spare list and you get to throw down a bunch of picks for what jobs you want. Since you will be the bottom for awhile , you will end up with what no one else wants, which isn't necessarily bad. What might seem good to you: hours, type of job(shifting, cpu, road work(well, that is hard to get) ), might not be good for others.
And when the casuals come in, they are on the spare list also and you beat them out on picks for the jobs that are created to accommodate their arrivals. Back to normal by January. Also, you don't have to remain on the spare list, you can bid for a permanent job and you will win it if no one senior to you bids it. Don't be discouraged by that last fact. I have seen a bottom of the seniority list feeder driver successfully bid a permanent 9:20 am start time tuesday to saturday job.