You don't have permission to access "file name here" on this server.

Apache/2.2.6 (Unix) Server at "website here" Port 80.

ok, so thats what i get when i try to access this folder. but, if i go to a file directly in this folder, i can access it. its only when i try to access the whole directory that im blocked. how can i view all the contents of the folder, without having to put in a specific file?