problem getting iphone plan after flashing for cricket...

[rjn3030]

I have iphone 4 that I purchased from verizon.
I jailbroke it. i called cricket to add the phone to the account before I fully flashed it so that talk, text and data would work. the rep told me that it was not a cricket iphone and got me signed up to a smartphone(android) plan not the iphone plan. I am going to fully flash the phone right now but I need to know if I can cancel the adroid plan, flash it fully, then add the esn/meid number manually to cricket, and then call cricket to setup the iphone plan?

also, is the iphone flashing software from xxxxxxxxxx.com any good to fully flash the iphone 4 so that it has talk, text, web, mms and so forth?

thanks