[master4g]

Noob here. I read this thread and didn't find satisfying answers. Please can someone answer these quesions. I have the sprint diamond and i loaded it with a bunch of my stuff

1. When i activated this phone, sprint had me put in some numbers into the phone, would i lose these numbers if i update the rom?
2. On the first page it says I have to unlock the phone. Is this necessary for the sprint diamond, or is this only for those sim card diamonds?
3. Does everyone who update the rom have to do the gps fix? or is this a rare case for some people only?
4. I have used spb backup to back up all the programs and files i have saved on my sprint rom , can i just restore them on the juicy rom, or do i have to reinstall everything

thanks for the help