One of his sites allowed me to access his index page (root directory) which had everything listed that the site consisted of (html, jpeg, gif etc) but am not able to do this with the others. He claims that he does not know how to allow me access to this. Can anyone help? This is what the index page (root directory) looked like for the site I was able to access:

The only difference is that it starts with "Parent directory" and then continues with a list of different files such as jpgs, gif, html etc. For 2 of the sites, when I try to access them, I get a 403 forbidden page and for the others, I simply don't know what to type. Does anyone know what he would have to do give me access to the index page? I would really appreciate any help no matter how small. Thank you.