The link to Software Reference Manual on http://geant4.web.cern.ch/geant4/G4UsersDocuments/Overview/html/index.html is not working: it leads to some *.csh file of length 91 bytes, which can't possibly be the manual...
Most of the web links are now fixed. Please, see the message in the front page and submit any problem to broken links you may still find to the web-master. Thanks.
Count it as fixed...