Can I use remote-uploads with authentication as well?

Yes, thats possible. Just use http://LOGIN:PASSWORD@www.server.com/file.zip and replace LOGIN with your login on that server and PASSWORD with your password there. We will login on that server with that data then. Please do not use your RapidShare-Login, this is wrong! Your login-data is safe with us. After you have finished any remote-upload, you can delete your remote-job from the list. This way you will delete any data about the remote-upload itself, including the login-data you have given.