His nick is SplinterGU. You can try to mail him at splintergu@bennugd.org, but the preferable way to contact is the forum: http://forum.bennugd.org. Donīt be afraid because of the amount of post in english...the main comunity is spanish-speaking.

He also has said that soon will be a  64bit version of Bennu...he must decide whether it will be incompatible at level of the compiler and library interfaces or not...Besides, a new 64b base data type will be added.

If you talk to him, you will be informed very well.