Connecting media device wirelessly

My situation is that my network is largely wired, but devices and other computers can also connect with my Cisco modem/router wirelessly. I have a Roberts Internet Radio which can connect to the internet happily, but it won't connect to my computer's Upnp server - I guess probably because the computer's connection to the router is wired, not wireless. My question, then, is it possible to bridge the Internet Radio's wireless network connection to the router to the computer's wired connection...? A network map is attached...So you can see from the map, the Roberts can connect through the Cisco router to the internet, but not to to Acer eMachine....Thanks for any help!

I was hoping to avoid having to do that, but it may be the only way, I'll try and and see...Thanks...