Sources
Linux Installer: mono-1.2.6_6-installer.bin [MD5SUM]
Windows Installer: mono-1.2.6-gtksharp-2.10.2-win32-5.exe [MD5SUM]
Mac OSX Installer (universal): MonoFramework-1.2.6_6.macos10.novell.universal.dmg [MD5SUM]