Finally!
Great looking program, works perfectly. Just bought it yesterday to play radiostreams without the need to turn on the tv.

That's a bit of a disappointment, and with only 15 minutes for a refund, before i figured out it wasn't working i was to late.
After playing around a bit and get everything else to work i got an idea.
WORK AROUND FOR STREAMING RADIO

Create a playlist file
Radio.wpl (or whatever the title)
Place this file in the playlist folder (can't find the playlist folder? create a playlist in WMC and do a search trough your library to lacate the folder.
Open the newly created Radio.wpl with notepad and place the following inside and hit save:
<?wpl version="1.0"?>
<smil>
<head>
<meta name="Generator" content="Microsoft Windows Media Player -- 12.0.7600.16667"/>
<meta name="ItemCount" content="1"/>
<meta name="IsFavorite"/>
<meta name="ContentPartnerListID"/>
<meta name="ContentPartnerNameType"/>
<meta name="ContentPartnerName"/>
<meta name="Subtitle"/>
<author/>
<title>Radio Stream</title>
</head>
<body>
<seq>
<media src="
http://82.201.100.9:8000/radio538.m3u"/>
</seq>
</body>
</smil>
As an example i used a dutch station (Radio 538) and it works.
You'll have to create a new playlist file for every station, otherwise only the last station in the list plays.
Wait a bit have a cup of coffee or a beer and let WMC find the playlist.
On your phone scroll to playlist and enjoy (don't forget to turn of the TV)