Can any1 help me. Do I need to have the FFXI original disk in the Xbox to start the Playonline viewer or is there some way to start it from the Xbox 360 Dashboard?

you do need the disc. even though it installs on the harddrive, the game is still launched from the dvd. just like when you do a full install of a game on a pc you still need the disc to launch it in order to make buying the actual disc a requirement.