I Switched My Current Sim Card With Another Blackberry. The Data Is Not Working.

I used to have a blackberry tour with Verizon in the USA. I had it unlocked. I moved to Canada, and I am currently with Fido, using BB Curve. I want to use my old BB tour with my Fido SIM Card. I placed the SIM in my BB tour. The voice service is working, but the data is NOT. I called Fido tech support, and they are of no help. Can you help me set up the data service in my Verizon BB tour (which is already unlocked) using my Fido SIM card?   Thank you