Hello,
A quick google search found these and are actually on this site
good luck!
Carrier APN Settings - ModMyI - Wiki
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Rogers
APN: internet.com
Primary gateway IP: 172.25.0.107
Username: wapuser1
Password: wap
The above didn't work for my iphone, but this did...
APN: internet.com
Username: guest
Password: guest
MMS Settings:
MMSC: mms.gprs.rogers.com
APN: media.com
Username: media
Password: mda01