Invensense IMU3000 with PIC
I doubt you'll be able to compile the libraries (meant for Visual Studio from what I can tell) in MPLAB - the targets are insanely different (desktop PC vs PIC microcontroller).  It seems to me that the directions they gave you with the libraries are meant to be followed if you want to use the chip with your desktop PC.  I doubt you'll be able to modify the libraries to allow them to compile and run with the PIC.  Instead, you should examine the code and try to re-implement it on your own for the PIC.  The code can give you an idea of what to do but you won't be saving yourself any time trying to use it directly.