The term upgrade, in the context of operating systems, means from one version of the OS to a newer version; Windows XP to Vista, in this case. It may be possible to overwrite Yellow Dog Linux with Vista (I can't say for sure), hoping for the best when it comes to hardware support (drivers), but it would be a clean installation, not an upgrade.
Hello everyone! I know you missed me, so I have returned. Today my question is if you can upgrade from Yellow Dog Linux to Windows Vista (the smarter people will have already presumed that I want Vista on my PS3, since theat is what Yellow Dog Linux is created for).