AC makes plenty of announcements about how to connect at YYZ so not sure how you missed these. Whenever I have arrived at T2, there are always AC staff directing people out of Immigration/Customs. There are moving sidewalks at T1 and lots of signage to get from one terminal to the next. What flight were you arriving on? And if you were confused, there are always agents in the upper Departures check-in area who can be asked if you got past the ones outside the I/C hall.