I am most confused by your post
The aim of the org is to provide a catalouge or library of all the amv's created. It also provides links to say where you can get them. It also hosts a great many of these videos on it's own local servers.
If you are uploading a video... first you have to make a video entry and yes during this process it does ask for a link but you don't have to provide one. Then you go to the upload page and get the ftp address and password and upload your vid.
The reason it asks for a link is because the uploading and entry process is separate but you can only upload once you have entered a video.
Hope that clears a few things up.