Definattely according to the new Rules, You have to apply directly to sydney. and after submitting if you will get the AOR after 3-4 weeks then u will submitt your full application to Local CHC.
It might help for you to go to http://www.cic.gc.ca/english/pdf/kits/guides/EG7.pdf as everything you need to know in sending your application to Sydney CIO is there.
when we received AOR from sydney should we need for filling a immigrant form again or sydney office send my form to CHC.
one more thing after we received a AOR what documents the local CHC required to send ???
It might help for you to go to http://www.cic.gc.ca/english/pdf/kits/guides/EG7.pdf as everything you need to know in sending your application to Sydney CIO is there.