Yes, I have read the FAQ

I can't get downloaded files to be assigned the permissions I would like (666), newly downloaded files will be systematically -rw---x--
umask is 0000
extract from amule.conf
TempDir=/mnt/p2p/amule_temp
IncomingDir=/mnt/p2p/amule_downloads
PermissionsFiles=666
PermissionsDirs=666
directory permissions of download directories are
drwxrwxrwx 2 nobody nogroup 4096 2007-07-15 23:43 amule_downloads
drwxrwxrwx 2 nobody nogroup 4096 2007-07-16 00:02 amule_temp
amuled and amuleweb run as user "amule".
I tested creating new files with touch or vi as user amule, they are correctly created as rw-rw-rw- so the problem seems to be either on amule side or I am missing some deeper understanding of Linux (which is not at all unlikely).
System is a PPC based NAS running Debian Etch and amule 2.1.3-1 (command line only, no GUI).
Thanks in advance for any hints.