My software is apparently up to date Ver 3.0.49
Let me inform you that your firmware is certainly not up to date
(despite what your SoundBridge is telling you) -
You should use either 3.0.44 or 3.0.52 (which is the updated Beta release of 3.0.49 that you mention).
that the Stream-URLs for BBC Radio 1, 2, 3, 4, 5, 6, & 7 are indeed All playing on my SoundBridges (tested with both 3.0.44 & 3.0.52) as I respond to your post at 22:40 BST.