Oh, and if someone gave you or you paid for an unlock code, you got ripped. CDMA phones don't unlock, they must be flashed and Sprint/Verizon don't do this.
Posted from my CrackBerry at wapforums.crackberry.com
You can try and call Verizon and see if you can activate it. Just call their customer service number and give them the ESN. Tell them it is a Verizon phone and see if it is at least can be activated.
Then go ahead and update the phone with the official Verizon version and hope it works.
You may have issues with data, but it may be fixable. Visit www [dot] howardforums [dot] com and see if you can get some answers there.
its worth a shot. i didnt pay anything for the sprint curve so **** if i can reflash it with vzw software and verizon will activate it, they hey i got lucky, but if not she will have to get a new phone.