Unfortunately the Ambisonic Toolkit website has been down for several weeks. This is due to server problems that have turned out to be hard to resolve. Hopefully it will be fixed in the not to far future.
In the meantime, direct links to the latest version (1.0.0.b6) can be found here:
Windows: http://bit.ly/1N372zt
Mac: http://bit.ly/1N371vf
