EZ scenry problem

I Just tried to install EZ scenery on my new computer running Windows seven. My old machine is running W Xp and that seems to work OK (except the cursor keep going away). I tried to re-install it but that didn't help. I seem to be missing something but I don't know how to correct it. When I go to a pristine airport and try to add an object the program wants to install it at a different airport (??). The program will also tell me that the file format doesn't match. Very frustrating. Any comments that will point me in the right direction will be appreciated.