I might have fixed the roaming issue or why mine is not roaming. I am using the 60613 PRL from Sprint. After updating *228 I do get a Digital Roam with a solid triangle, showing 30033. If I update the PRL from 30033 to 60613 my roam will go away.
http://www.corolada.com/prl/
Save PRL files to your internal storage of your phone
To update:
##775, put in your MSL (000000), highlight update PRL, menu, edit, browse, find your prl, OK, OK and the phone will reset.