1. Unzip the zip file in your main FS2004 ADDON SCENERY folder
2. After this,run your FS9 and go in the sceneries library to add and check the new scenery:"LTAS 2011".
Don't forgot to restart FS for it take the change, if you want see your new scenery.
After restart FS9 search "LTAS 2011" in your flights library and choose on of the situations at LTAS.