[Zope] directory layout

I'm trying to get the hang of Zope's FTP and am making slow (but steady) progress... What I have no idea about is the way the server presents objects to the client via what must be some sort of virtual file system. Assuming I have a user called manager on a site called plone1, I seem to get as far as /plone1/Members/manager but no command shows me what is in this directory. How do I find out what is there? -- John