Quote Originally Posted by starapple
Clicking the "Upload your video" link results in a 404 error although the page is on the server. It seems this is because the user does not have access but this is not explained. On logging out the upload.php redirects to the sign up page.

I also get a 404 error when I attempt to log in as another user: /login.php?next=upload although I am logged in.

I should have left well enough alone.
Check if login.php is uploded to your server.

What is your web site url ?