Go To: http://www.galttech.com/ssheaven.shtml
They have some pre-made Airline screensavers. Search the whole alphabet, as they change, and add more, quite frequently.
What I did was download the slide-save screen saver from there, and added pics from this site. WARNING: There's soooo many great shots on Airliners.net that you can put too many in your screensaver, and slow down your computer!!!
If you have any questions please email me, and I'll try to help you out.