Of course, it's just under the keyboard you would open up just like it says in the 8886 breakdown in the review section.
This is the MiniPCI card people are confused about. It plugs in under the keyboard and is for internal wireless.
The metal cage looking thing uner it in the picture is the PCMCIA slot where the PCMCIA card sits in and it sticks out the side of the computer. That's if you don't go for the interneral wireless which most people would.
Here's some more pics of how the antenna is routed through the system:
I highlighted in pink where the antenna (2 wires) runs.