Thanks for the update. I'm not a fan of the screwdriver method, as it frequently tears the can, and then you have even less area to work with. (When this happened to me, I used a chisel to get a bite on the mounting plate, and swore that I'd never try the screwdriver trick again.)
Now that you've mounted a filter, take a look at the oil filter review page here
- Read it and you'll understand why every time I see a Fram filter on a boat I have to bite my tongue.