Normally using firewire means buying a board with firewire on it. The board you picked has Firewire on it. The Firewire ports are not related to USB ports, their treated by windows as a Network connection, and the things you connect are treated as network devices.
You can actually network two computers using the Firewire controller, but your board also has a genuine Network controller built in.
<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>