[mikewest]

It seems as if nobody actually answered the initial question. The way to manual provision a Sprint phone is to get the MSL (a six digit code), mine for example is 123456. I go to the dialer, press ##123456#, then choose EDIT mode. (touch each of the two settings you see, and enter the correct information.) Once you are done, click MENU, then COMMIT MODIFACTIONS.

To get your MSL on your ROOTED phone, go to the market and download MSN READER.

If you are running a custom rom, you might not have EPST installed on your phone, and this won't work. I assume if you used ##786#, then you must have EPST installed. If my memory serves me correct, SPRINT LOVERS ROMS, usually leave most of the stock apps installed.

Another note, is to make sure you correctly MDN (Mobile Directory Number), in my case this *IS* my phone number. Be very careful, as this is *NOT* always the case. I am not sure of the reasoning for this, but just be sure that you know what your MDN is.