If you didn't saw it, go to this page first.
Let's start with some examples. I don't intend to teach you how to program in Pic Micro Pascal, I know very little myself. But let's hope these examples will get you started. It is a very well optimized compiler. Not as much as JALv2 but very close, and at years distance above SDCC which is the worst free compiler for PICs.
Again, we are burning examples using a Pickit2/3 or compatible programmer connected to FreeJALduino ICSP connector. But recently, the PMP got the ability to work with the JAL USB bootloader and this is great - no external PIC programmer required.