AI flights are certainly a NO GO too
Sorry to hear others are having issues with AI in the Solomons with the new scenery. I set up some AI flights e.g. Henderson to Vella, Munda etc and back and they seem to have survived installation of both the beta and final versions of Mark's scenery.

Think I may have had to add some parking to the default airfields to get certain aircraft, e.g. some B-24's needing a larger diameter parking spot, to show up.. I use ADE. Also need to convert the flightplan compiled with TTools with the FS9>FSX converter tool. Had success adding water runways in FS9 and will try that next - need some Black Cat PBY's at Tulagi - and report back.