This has been asked lot around the internet over the last years. The existing maxscript plugin for the game is for 3ds max 2006.
I know im not the only one hoping that somebody can create a new script for it
If it's helpful here is a documentation about it (don't know if all the required information is here).
http://modtools.petrolution.net/docs/AloFileFormat
http://modtools.petrolution.net/docs/ChunkFileFormat
Here is some information on the Animation format:
http://modtools.petrolution.net/docs/AlaFileFormat
Also here are the old 3ds max scripts:
Exporter: http://modtools.petrolution.net/tools/AloExporter
Importer: http://modtools.petrolution.net/tools/AloImporter
Really hope you very talented individuals can help me and the community with this