Questions on transferring a Verizon v710 to Alltel

I have just recently bought a used verizon v710 that I had activated on my Alltel plan, replacing my v262... The phone works on the service, but of course, there are a few things I want to change/hack on the v710, most importantly enabling the BT file transfer. But I have a couple of questions:
1. Is it better to use an alltel flash like some verizon users have?
2. Are there any other ways to alter the phone to make it more compatible with my alltel service? (i.e. adding the AXCESS apps feature in place of Verizon's Get It Now, etc)

Thanks in advance for the help!