Sprint Nav w/ custom rom?

[spamn]

Out of the box I used the Sprint rom for not even a day. I did use the Sprint navigation software before flashing though and it worked fine. I flashed to NRGs Leo rom (cannot remember which build it was) on the CDMA page and Sprint Nav worked fine. I upgraded to a newer release of the same rom and Sprint navigation would only work on the first run. After that it would just go to a screen asking me to purchase a subscription. Even though I have the everything plan and the GPS service is unlimited, I did not want to click ok on the subscrition.

I heard about Mr.X's carrier cabs and flashed his Sprint cab after a fresh rom flash and then installed the nav cab. Still no luck. I just tried the MightyRom with built in provisioning cabs. Still no luck with Sprint nav. I tried 2 different Sprint Navigation cabs as well. Both claiming to be the TP2 stock cabs.

I have read of many others having this problem but have yet to find a solution that works for me. Any advice?

Thanks
Sam