You will need to install the MediaCenter server component on your Microsoft Windows 7 PC with SP1 32 bit only
A 64 bit version for Windows 7 and Windows 8 is comming soon...
Your Windows Phone has to be wireless connected to the same local net as your Media Center.
The IP address of your Media Center must be entered into Media Center Remote.
You can find the IP address here.
Enter 'cmd' and press enter for the CMD Window to open.
In the CMD Window enter 'ipconfig' and press enter.
The IP address is the IPv4 Address (here is 192.168.1.108)