Hiya DonnFirst of all I would check that under Settings --> ATC, that the traffic percentage is not at 0% if you haven't messed with it, it shouldn't be at zero
As for the file corruption, I know some extracting programs dont like opening CAB files (although there is an option to install a CAB files viewer from your Windows Disk, I think Windows Me and above support this). Apart from that your best bet is to probably try a reinstall of FS2002, this will replace any files that have been damaged or missing
Please keep us informed about your problem
Sam Harvey
sam@crew.flightadventures.com