Hi,
If you already had a BeoMedia 1, you didn't have to buy a BeoPort, all you needed to do was to download the BeoConnect app to use your Mac Mini with the B&O system. You'll have to choose which system distributes NMUSIC and NRADIO (BeoMedia or BeoPort, it can't be both).
For Linkplayer or BMLink to distribute NRADIO, you have to create a playlist called N.RADIO (don't forget the "." when naming!), and then copy/paste your favourite Internet radio stations in the playlist.
Reunion Island is greeting you!