I'm not able to view the downloaded arcsight admin guide. I tried 3 versions and its good with other docs except Admin guide. Does everyone face this issue?
If you are unable to download from the Protect724 portal then ArcSight Support can upload any required documents to an HP ftp portal site for you. Call them up or raise a case via the portal (https://softwaresupport.hp.com/) - they do this sort of thing all the time.