i have a apple ibook g4 is the model to old for quicktime download

Older Software Downloads - Apple - Support

http://www.oldapps.com/mac/quicktime.php

im trying to download quicktime but i dont have the option to is it because the computer is older

The specific version of QT that you can download and install will depend on the specific Mac operating system installed on your platform. See the compatibility download list as already posted above to view which QT version options are available to you.