Hi All. I, too, had problems with this app on my 8100 and here are some things I did to get it working better:
1. For the IO Exception Tunnel Error, make sure that you have the correct TCP settings for your provider. Also make sure you have ALLOW for all of the permissions for this app and its module(s.) These TCP settings can be found at this post under "TCP/IP Settings Configuration Success Reports: www . blackberryforums.com/blackberry-network/2185-blackberry-internet-msn-chat-web-telnet-tcpip-no-bes .html#post20157
(Sorry - I Can't post URLS yet even tho i tried relative as well - maybe the Admin can edit it back.) ;)
2. I haven't been able to add a new station but I have been able replace an existing station with another one. I have done this using iTunes and Winamp using Shoutcast to find/launch stations ON MY PC...
2A. So, I went to Shoutcast.com ON MY PC, found a station, chose the 24K feed (I haven't had any luck with anything higher such as 56K - skipping gets bad when I go over 24K), launched the station using the 'Tune In' link. Once it launches in iTunes or Winamp, rt-click and choose 'View File Info (ALT+3) in Winamp or 'Get Info'' and refer to 'Where' in iTunes. Now, using that value, drop the 'http colon slash slash' part and keep the rest, as this will be your url value to use on your BlackBerry.
2B. To replace a station in RadioBee back ON YOUR BLACKBERRY, select the station and click your Menu button, choose Edit. Go to the 'url' field and replace it with your new url you got from YOUR PC.
I am still experimenting with the Buffer settings, but adding an extra 0 as mentioned above really helped and possibly a DOUBLE buffer value helped as well. I am unsure of this but I am also finding that in areas with 3 bars or less, I get too much skipping.
Hope that helps!
Take care,
Swoop