by Gareth J Barnard.
Dear Henri,
The 0644 issue is to do with the user permissions on the linux / unix machine you are using - probably what the ftp program had permission to do - and not Moodle.
If you want to try out a later version on your own there are some excellent self install packages:
http://download.moodle.org/windows/
http://download.moodle.org/macosx/
Cheers,
Gareth