I acquired an older Airport Express to "extend" my wifi and for Airplay support, but I cannot figure out how to configure it. The easiest method appears to be via Airport Utility on PC since I won't run into any compatibility issues within Mavericks. I installed an older version of the software, yet I cannot detect the Airport Express when I run the software. All I show is my current gear, which happens to be a modern Airport Extreme and Airport Express. So...how the heck do I configure an older 'g' model of the express? Any tips?