Eric - There are a lot of downsides to handing out a free version to an app that's no longer in development. One consideration was that Nicecast duplicates functionality from Audio Hijack, which is still actively developed and sold.

dB - It can't be ported to 64-bit, due to choices made long long ago. The big one is that the entire Effects system and audio pipeline is written in Carbon. And not modern Carbon either, but old school QuickDraw Carbon. Back in 2003, this was a Good Choice, because VST/AudioUnit plugins all used Carbon for their user interfaces. It's only 15 years later that it finally catches up to us. The only way to modernize it, is a costly full rewrite.