This S3 is set with signed URLS. You should use the signed one to get them.

iPhone

http://s3.amazonaws.com/files.posterous.com/temp-2013-02-16/...

MacBook

http://s3.amazonaws.com/files.posterous.com/temp-2013-02-16/...

They were uploaded to Scribd, so if you're on a Mac you can choose the print option and then open it in Preview as a PDF or save it directly as a PDF right from the Scribd preview on the page.

I had trouble using this method with Chrome, but Safari worked fine.

Link to Scribd?

The original source still works fine:

http://sonnydickson.com/apple-technician-guide

Downloadlink there does not work for me: AccessDeniedRequest has expired