I could send you my MAP. Well maybe one of my older ones before I had the new engine and did not have the extra injectors.
It ran well with the MAP for 1.5 years or so. I got around 37MPG and ran a s*** ton of boost. Just make sure to ALWAYS back up your existing map first don't do it once, do it twice and then load a new map.
It is best to have an A\B switch so you can instantly switch back if it wont run or if it runs like crap. I loaded up a buddies PR5 MPI map (he is boosted) and it barely ran so I just loaded my stock map back and VIOLA!
It ran again.
I am no tuning guru but I have used an MPI with a good measure of success for coming up on three years now...
My MPI software runs on Vista but there are huge variables in system setup so who knows if it will work on yours. I have 6 PC's and 4 laptops so I have no issue finding a box to run it on