This is quite easy really, you just need to connect one of your Pc'S (either one it's your choice1) to the USB cable and connect the other to what they call the ethernet port, also referred to as an RJ45 port.
I'm sure with the Netgear if you then open I/explorer and type in the address bar
This will bring up a dialog box asking for user name and password, you need to enter
admin for username
password for password
Now you should be able to follow the wizards to set up your router.
If that don't make sense, then please post back.