Went back to a version w/ 2.1 now working again
Oh well I'm sure we'll get some reg tweak to get it to work on 2.5 later on down the line. To get it to work on 2.1 you have to go into Phone settings -> Plus Code Dialing & have International dialing code cleared w/ nothing & North American dialing enabled. I also ran a Sprint provisioning .cab that was included w/ the latest Silence 2.1 ROM, not sure if you need to do that though.