PBP v2.47 should work fine with MPLAB v8.15a.

Are you 100% sure your ICD2 is programming config settings with what you expect?

Are you programming it to run in the ICD, or just using the ICD2 as a programmer?

Have you tried programming the PIC and dropping it on a breadboard?

Are you compiling from within MPLAB, or are you using MicroCode Studio to compile?

If you're using MicroCode Studio, and you're clicking the ICD Compile VS the standard
compile button, that would explain why it doesn't work. If you click the ICD Compile
button, and program the part, it only works when connected to a PC with the MCS ICD
software running.