Apple Server 10.0.4 Link Failure

Although I have been attempting to update my Apple Server Software to Apple Server 10.0.4 (POwerbook G4 System 10.0.4), via

http://docs.info.apple.com/article.html?artnum=120035

the link fails to work. Candidates are invited to select the software, then invited to confirm appropriate use, then invited to select the software, then invited to confirm appropriate use etc