I'd start with PBP, white then blue. It should tell you if the version is required.

Then run B&W update. Same thing, it should tell you if it's required or not.

Then Microcode Studio, so you can set in options where you installed PBP.


Are you sure some are not older PBP 2?

You can also check on the cd, readme files which version they are. I use a black marker to label my CDs.

Then I'd check the web sites to know which version of MCSP and MPLAB is compatible with which version of PBP.