If the phone is deactivated from alltell and esn is clear, try manually loading a VZW PRL and dialing *228 and choose option 3. It will ask for your phone number and to verify your account info. This is how I got a sprint touch pro on vzw first try. It should work for any foreign ESN device, as long as it has a vzw PRL loaded so it will try to authenticate on the proper network.
http://forum.ppcgeeks.com/showthread.php?t=44663 Is a link to the thread about getting a sprint touch pro on verizon. I think the Verizon PRI updates for the Titan could be applied to get working GPS, so Only try to load stuff like the PRL out of that thread.