Please list mostly audio/video/archive file types, listing too many miscellaneous little files like images, exe files, empty folders, may prevent your site from being listed at all, and wastes bandwidth as they are not listed.

All of these fields are optional, any left blank will use the default values.
hostname or IP address: Ex: 1.2.3.4 or hostname.dynip.com (defaults to your IP)
login/username: (defaults to anonymous)
password: (defaults to email address)
port: (defaults to 21)

When you click the button, you don't have to wait for the page to finish loading for the site to be added. If it's open, it will be added during the next every-5-minutes update.

Try sharing a few of your favorites without a ratio or other restrictions. Offering lots of files on a slow connection doesn't do much good and leads to 'hammering', as search engines can't constantly check every site every couple minutes.