I'd still keep trying with the APNs. Make sure with the carrier which APN is associated with your account, as there may be several. AT&T for instance has some 3 or 4 different APNs.
Rogers doesn't have any RUUs for this phone, as far as I am aware I don't see how CM will help, unless the ROM specifically supports Rogers and will have the proper Rogers APN pre-configured (or other things like build.prop). You may have better luck trying to find the stock Rogers ROM, or have another member here upload it for you.
Thanks! I and a teir 2 set of technical support staff from rogers (working over 10 days) have yet to successfully resolve the issue with APN settings. I also tried making sure that roaming was enabled since technically im not in the normal AT&T coverage zone. Figured that may have stopped data transmission, but it was also unsuccessful.
I think you are right. Might be best I start searching for a Rogers ROM. I did read somewhere that CM seemed to resolve this issue on some other phones. They may have been Tmobile though.