Also webshots does not allow outlinking from their site. Once the server detects that the requesting link is located on another server or domain it will refuse to upload. Unless of course you are a member and have a cookie on your computer that the server requests to see if you are logged in.
Cookies are what make it all happen. That is why once logged into FR you don't need to re-log unless you log off and another cookie is deposited in your computer.