If CNO received all your required documents then you should received the initial registration form in the mail soon. After that form and payment of $282.50 is received then it takes approximately 15 business days to get registered. At that point you can search your name in the Find a Nurse section on the CNO website. :)
I didn't find the exam too difficult. If you studied the prep guides and did well on the predictor test then for sure you will do well. I find that it's understanding how to answer the questions versus memorizing everything learnt in school. Hope this helps! Good luck to everyone writing soon! FYI I did my exam on the 31st in Mississauga. :)