I believe that rogers is still using BIS 1.8, but I've seen some mention of the transition having occurred. When you login to your Webclient account where you set up your different email acounts, can you read your BB emails? If so you're still using BIS 1.8. If not it's 2.0. On 1.8 you can only have one from or reply to address. With 2.0, ypu have one for each account that is included in you BIS setup.
Hope this helps.