"How to Set Up Your SRX320 Services Gateway" bears no resemblance to reality?

I have a brand new SRX320.  I pulled it out, assembled it, plugged it in, and attempted to follow the "How to Set Up Your SRX320 Services Gateway".

I got a 192.168.1.2 address on port 5--which is *NOT* what the documentation claims.

Okay, so I moved my connection to port 1 and attempted to get to J-Web on 192.168.1.1--but there was no web server on that.

Okay, so I pull out my serial cable, connect to the management port, and look at the configuration--which bears no resemblance to what the documentation claims the setup should be.

Did I screw something up when I plugged the hardware in?  Was I supposed to hold down a button somewhere?

I managed to get the web management stuff enabled from the serial console after poking at things for about 5 hours, but something seems really broken.  If I screwed up, please tell me where I failed.  Or, somebody at Juniper really needs to go back over their documentation.

Thanks.