Hi,
I'm a bit unclear as to the problem. If Broadwave starts running automatically, it should be able to accept incoming requests as soon as everything is in place - e.g. once the network connections are up and firewall permitting connections and so on. You can check this by requesting one of the saved sample audio files, to check whether the problem is Broadwave accepting any streams.
If, on the other hand the problem is that the default live stream is connectable but silent when you first start, and you need to "click stuff" with the audio config of the soundcard or Windows, then you've hit what can be a common problem due to the soundcard drivers. I'm having this problem on a test on a new PC with Windows 7, and I can't send sound to Stereo Mix until I go via the audio settings.
So, please describe exactly which of the two your problem actually is, and also tell me the exact steps you take to get it working, including the type of soundcard, and I'll try to offer some more detail if I can.