Need Help With Master Source Input/ Output

2 friends and I are having a small radio-station where we normally mix in Traktor, and send our stream out via Winamp Shoutcast.

Current setup:
Airtime playes when we dont play live shows.
When we want to send live, we log in to Airtime, stop the stream/ connection to our Shoutcast and then connect from Winamp Shoutcast on our computer instead.

1. How do we send the signal from Traktor to Airtime so our listeners dont need to refresh their browser?

Best regards