Swap a Verizon ESN to a another Verizon phone?

Right now I'm using a Pay-as-YouGo Samsung Sch-u340 phone from Verizon. I just a new LG vx9000 off ebay and the MEID/ESN has been block because it was repored lost/stolen.I tried to get my money back but all the seller said "all sales are final". So, I would like to take the ESN from the Sansung and put it on the LG. Is this possible? Tip/tutorial web sites are welcome. Thanks