I also have rogers and was required to change my email addresses domain name from @home.com to @rogers.com.
Besides that none of my newly converted accounts are working while using rogers.com, the old home.com still works for me.
Changing your email address should be all that is needed. The dns servers etc. are not changing.
When I ping mail, I still get the old bloor3.on.wave.home.com.
Check www.rogershelp.com (or whatever it is) and you'll see it only involves changing email.
Forgot to mention that I also have a Linksys router and I didn't have to change any of the settings.