I am using sunrise 0.42h to download a website. The first links are ok, the rest shows an error message " Unhandled response:http/1.1 403 automatic downloading forbidden". If I visit the website via IE, then it is ok. Anyone knows how to solve the problem? thanks a lot.

As the message says, automatic downloading is forbidden. This means the site has been configured not to serve too many downloads at once. In other words: spidering is not allowed. There's no way around this.