I finally figured some stuff out. I had to download Mozilla to run gamecenter. For some people, it works on chrome, some people, on explored. etc. Try every browser you can think of. It worked for me.
I had mine refunded after 5 days of messing around, just in case. I didn't want to be outside the refund period, unable to get a refund, if for some reason they can never get this thing off the ground. They gave me a promo code for 30 days of free ...