I did not apply from Canada, I applied in person at the Embassy in Vientiane, Laos. You should look into applying online via the Embassy in Ottawa or Vancouver.
Yup, only the opening and closing balances for each month. I did have the full detail available in case they would ask, but it was 14 pages for each statement so I only kept the first page for each. They didn't ask for more.
When I was there Friday I heard 2 people in front/next to me applying for DTV and be told no, or to come back with other documents. I know nothing about their situation though.