First you need to use Firefox web browser and download Flashgot add-on
and installed.Then download Orbit downloader
and installed it.
Now go to rapidshare website getting the download link.After click ‘download’ icon,a pop up window appear ,select ‘Flashgot’ option and click ‘OK’.
Click ‘More’ to expand wizard window,select ‘Browser Context’ tab,then delete the address after http;//xxxxx.rapidshare.com in ‘Referrer’ column become ‘http;//rs548.rapidshare.com ( refer to image below ) and click ‘download’.
You need to try several time then will work fine.