Do I need an Alltel ROM when flashing a Mogul from Alltel to Cricket

[nonzero]

Im trying to flash an Alltell 6800 Mogul over to Cricket service, however, in a thread I read pertaining to a Sprint Mogul, the instructions say to, "run titan unlocker... & After words Run the Alltel ROM and let it install." Is this necessary if my phone is already an alltel phone?

Also, is the VX6800 the same as the Mogul? The term is used on the same page.

Any help would be greatly appreciated.