Hi Wilmak - Detailed instructions for using RoomEQWizard and setting up the meter can be found here:
http://www.hometheatershack.com/roomeq/wizardhelp/help_en-GB/html/index.html
Radio shack should have whatever cables you need
http://www.hometheatershack.com/roomeq/wizardhelp/help_en-GB/html/index.html
Radio shack should have whatever cables you need