Recently I upgraded my Worpress installation to the latest release from Fantastico within cPanel on my hosting service. Upgrade worked fine but there was an error when posting new posts because of one of my plugins Role-Scoper. Tried to upgrade the plugin but the FTP kept knocking me back. Solution was to use localhost as the domain not the ftp.<domain> and the Plugin was installed.
Now to see if it worked! 🙂
Yes it did <VBG>
It is also easy to backup and transfer all your websites from one server to another server if you have cPanel installed-*;