you have to go on ecas to. you link to your GCKEY by creating an account .Once you get your AOR how do you link to ECAS and which website please can you explain to me. I have send application on 19 March and it was received in Sydney Office on 20 March by purolator courier.
https://services3.cic.gc.ca/ecas/security.do?app=ecas&lang=en0 that's the link for ecas.
I doubt you will find your application on ecas yet though. They are working on early March applicants.