how make sprint Mogul to Cricket??

[cable]

hi guys sorry if there was thread somewhere on here all rdy did search but did not find anything for mogul i just found 6700 . well the cell phone place said it can be done for like $100 on the mogul and pics and net work to he said but i want see if was on here some where and try it and may put that 6.1 thing on it to everyone talking about . any help on what are the steps to take on this and what can i do . thxs for any help