And just to clear up the confusion (I've used travelocity quite a bit)...the main line you should be looking for in the email is this:
"Please check in with
Air Canada on the day of departure for your boarding pass.
For your boarding pass, use reference code
Y**** for
online or airport checkin."
That's your booking code you will use at the kiosks when you depart and that will be the equivalent of your eticket.