I just tried 0.4.6 yesterday and worked fine.
When I have time I will try 0.4.7 to see if ALSA works with OpenAL (only OSS worked for me with FMOD).
Currently you cannot yet configure openAL in the config file. The driver settings are FMOD-specific and are ignored by openAL. The output target of openAL is left to the openAL default, which can probably be set when compiling openAL.