question about SAMBA shared directory and file permissions

[freebsd.org at carmoda.com]

Hi,

i have been having problems with a SAMBA shared directory and user 
permissions. My smb.conf file is simple and allows for members of 
'wwwdev' access the directory, and they can when i test it, but we get 
all kinds of problems with the permissions on various files and directories:

//////////////////////////////////////////////////////
[wwwdev]
	comment = Virtual Web Servers HTTP dirs
	path = /usr/wwwdev
	create mode = 0765
	valid users = @wwwdev
//////////////////////////////////////////////////////


i assume this is a ownership issue on the unix file system side, 
although i have opened up the permissions to 'pants down in public' 
level ....

drwxrwxrwx
-rwxrwxrwx