For the second question you could perform an install using a minimal boot iso as long as the old 32 bit system will have access to a decent internet connection. The Installation Guide
talks about this briefly in Chapter 2. Obtaining Fedora. I often use the link http:/download.fedoraproject.org, it will bounce to a mirror near you. The boot.iso can be found on the following path, fedora/linux/releases/18/Fedora/arch/os/images/boot.iso (note arch would i386 for example).