After installing MPLABB 8.92, I am still unable to find any support for 12F1572. Perhaps I have "issues" elsewhere. Using Microcode Studio 5.0.0.0 and Compiler version is PBPX 3.0.4.4. MeLabs Programmer 4.50...

I honestly can't say I know enough about the programming toolchain to be sure I'm on the right track. My typical projects use 12F683 or 16F88. I've used an 18F4420 a few times, but it ain't broke, so I haven't fixed it. Now that I'm looking at a newer chip, I find myself significantly out of touch and confused with where to start.