I would suggest save your cookies once in IE and Firefox, start using flashget which uses IE cookies and starts downloading the rapidshare files soon as you put the public link, it actually redirects to the server and the bigger url automatically.
Premium a/c is necessary if you want to do what told above.
Nothing complicated here… As alsiladka has mentioned, instead of just highlighting the URL and copying it, do this : right click it and select the copy link address or copy shortcut option and then paste that in your notepad..!