[Zope] ftp?

Hello zope, anyone knows how can i add ftp access to some folders, under the root folder only? i dont want users to see my Control_Panel, etc ... (i know i can take away rights from them, so they get Access Denied, but i want only a subfolder to be visible) or some chroot stuff.... if i want to code it, where should i look for it? tahnks, k -- don't believe everything you think