I have PP2000, but there is a difference in options between software versions. My car is one of the first facelifted Hdi's (early 1999) In PP2000 it doesn't have the option to activate cruise control. All connectors and wiring were already in the car, all hardware is now fitted.
I have already flashed about of 10 different software versions to the original ecu and the ecu I mentioned. I checked all with PP2000.
Playing around a bit I noticed with the program Checksum Corrector (downloaded from hdituning.co.uk) that the original ecu only supports software with 8 checkzones. Newer ecu's like the one from the Expert need software with 11 check zones.
All software versions with 8 chekzones do not have the option to activate cruise, all versions with 11 checkzones do.
The car won't run on most of the files though, and if it does i get all sorts of errors.