After some struggling, the 0.3a fixed AAC audio can be played normally in QT player.
Mild GUI adjustment, but fps and scale are not working now.
Mencoder, x264, AAC & MP4Box are compiled in PPC and Intel separately.
Owing to only have G4 Mac, I just tested PPC binary codes.
Still muxed VIDEO/AUDIO files only can be played by VLC.
DOWNLOAD: Mencoder, x264, AAC & MP4Box binaries for Intel (July 08, 2007 Build)
DOWNLOAD: Mencoder, x264, AAC & MP4Box binaries for PPC (June 24, 2007 build)
By the way, above mencoder can't be used for PEnGUIn(Encoder), they are not the same in x264!!