File sharing with OSX 10.5 server

OK I'm trying to create a file server with my Powermac G5, and right now, I have 2 hard drives installed, plus an external F800 drive connected. So I'm in the file sharing options within the server settings, and I'm trying to add folders which can be accessed remotely from both internal drives, but I seem to be having issues adding folders which have folders in them. I'm able to add folders that don't have folders in them, but not vice versa. Ultimately, I would like to add one of the hard drives itself to be accessible, but it doesn't seem like I can since it has folders in itself. How do I get around this? I'm currently trying to learn how to use the OS since this is my first time using 10.5 server, but I would like to figure out how to do this. Thanks

It should be easy using server admin, but I'll check our server tomorrow (Snow leopard) and figure out the steps (I have Lion server here which is a totally different beast)

Thanks for checking, I appreciate it, I was logged in as the server admin, so it should have worked, but I have one group and 2 users at the moment, one admin and one standard for testing at the moment.