The page http://fedoraproject.org/linux/releases/10/Fedora/arch/iso/ is just fine. But the page http://fedoraproject.org/linux/releases/10/Fedora/arch/iso/F-10-arch-DVD.iso does not exist. The message is simply: "Sorry we could not find that file".
This missing web page is advertised to be the place to download Fedora 10 from. I got this info from the "installation documentation" Section 3.3, in the table at the end of the section.
-sinan kaptanoglu