This version was never released publicly. It was a precursor to tor-flashproxy-browser-2.4.6-alpha-2. The only difference is that 2.4.6-alpha-1 has some extra unnecessary configuration in vidalia.conf in the osx-i386 bundle.
These files were at one point available at https://people.torproject.org/~dcf/flashproxy/ but were later deleted. This upload is from copies kept by David Fifield.