pNA and Ethernet co-existing

Hi!

I have an IDSL router connected to my Wireless Access Point, which I have a
few computers networked into it (both wired and wirelessly). It works
pretty well.

I bought a device (the Rio MP3 Receiver) that I'd like to connect to my
network. I'd really like to use the HomePNA capabilities of the device if
possible. What would I need to connect the HomePNA to my existing network?

Thanks!
Mo