Found this its not for all commodores but there are other cars free as well.
Don't click on the big download. click on view download link then right click on small download link then save as............
Theyre good manuals (factory workshop) heaps better than Gregorys
http://www.allcarmanuals.com/models-Holden.html
EDIT: Cant download to many real quickly you need to wait a few minutes between downloads