I tried clicking ok and the addon manager is in fsx and lists all the programs available. I have KPHX so tried reinstalling it and it went well to a point. I asked for my serial number which I entered and it was accepted. Then it stopped and didn't do the install. So it has me as "registered" I guess but didn't install.
LAX is looking ok now so my issue is mainly with the installer but I don't see a main forum for installer problems. If this post is in the wrong place please move it as appropriate. Thanks.