if you still need help, let me know.
This is how I did it.
Flashed it to alltel e815 firmware (errored out the first time, took it the second time)
Then flashed it to verizon e815 firmware (did it the first time)
Gave them the ESN on the account, then *22804'd it when they told us to *228.
We did this for jump though, not cricket, therefore didnt bother doing wap/mms