O.k. Now it's making a little more sense. I was looking at that nut holding the hub in place and wondering what the big deal was. I couldn't see the need for any special tools to get that off. So once it's off, then it gets more interesting.
The hub I got from Centerline also looks very different than the one on the car, but I was able to find the holes for the bolts. They were covered up by a small plate and I didn't bother to check behind it. Dopey me.
I'm going to go get those bolts and the wheel puller right now.