[Deltatristar500]

Hi, Im new to this stuff and Im really reluctant to updating the ROM but still would like to do so....Im back and forth on the matter. If I update the ROM on my CDMA Sprint TP do I loose all the stock software...the one that I really want to keep would be at least the Sprint NAV. Is there a cab for the sprint nav and other stock software if someone wants to put them back if a ROM stips them out?

Thanks