I am sure it does not *require* you to change anything, it only supplies an example for those who do not yet have a home network.
You can certainly connect the network card to the router.
When configuring the Amiga software, just choose an IP address which matches into your local network.
Also it would be a good idea to choose a fixed IP address for the PC, too, because whenever DHCP decides to give the PC another address, you have to change your Amiga software accordingly.
To access a shared PC drive, you can use the SMBFS software (see Aminet).
Bye,
Thomas
