Hi Andy,
This is the problem. PBP3 just does not connect to IDE ???
IDE stands for Integrated Development Environment. It's piece of software on the PC, basically a fancy text editor with some extra functions. MBLAB is an IDE and MicroCodeStudio is an IDE.
The most common one for use with PBP is called MicroCodeStudio.

PBP3 outputs .pbp files. How the **** do you then import them into IDE.
No. If you're using MicroCodeStudio it saves your source files as .pbp files but these are just plain text file. Before you can get them into the PIC you need to compile it/them. This is where PBP3 comes in.

Question: Are you, or are you not using MicroCodeStudio as the software in which you write your PBP programs? If not, what are you using?
Before we've got that squared away it's hard to give proper advice because you can very well write your program in notepad and compile them from the command line.

You state that PBP launches IDE - HOW ??
I did NOT state the PBP launces IDE. I said that PBP launches the assembler automatically (as long as it's installed properly).
PBP3 can be launched FROM the IDE but not the other way around, but again, before we know what IDE you're using it's hard to help.

At the top of the window of the program you're using to enter your program, what does it say there?

/Henrik.