Thanks Alain!
I can't believe this crap. Melabs says that PBP requires MPLAB X and links to a version (the latest). They say:
PBP includes a purpose-built IDE called MicroCode Studio, but many prefer to work in the well-known MPLAB IDE from Microchip. We include a language tool plugin for MPLAB to allow seamless development using Microchip’s development tools from within MPLAB. Debugging in this environment can be switched from Source to Assembly level for full access to the generated code.
Where's the plugin? Where's the instructions on how to use it?
Never mind, it's doesn't work anyway - with the version MeLabs is linking to.

I'm usually on the defending side when it comes to the what PBP is, what it does and what it can do but when it comes to this MPLAB integration it just sucks.
Apparently it can be made to work, you're the evidence of that, but they're sure ain't helping you out.

Sorry for the rant, had to let off some steam before the morning cofee....

/Henrik.