Sorry to say, but it looks like i can´t achieve what i want permission wise. I frankly dont know how to set up the vfs/directory structure to be able to use different permissions based on group membership when all the groups have their own vfs file with their own homedir defined.
I dont even know if its possible with ioFTPD. Using "the other" Windows ftpd atm and it can most certainly be done with that one, but it misses a few features that ioFTPD has, for example ident, and i would really prefer to use ioFTPD, especially now when Yil has put a tremendous amount of quality work in the project.
I´m kinda stumped right now.