I haven't seen an "aventure" flight of any kind for FS9. You can easily save your own custom flight after setting everything up in the Sim. Just hit the ";" key and choose a name. This will create two files in your My Documents\Flight Sim Files folder, one is a .flt file with data regarding what, when, where, and the status of everything like fuel, instruments, etc. The second file is a .wx that has the same name as the .flt file. This save all of the weather parameters in effect when you save the flight. If you delete the .wx file, the flight itself will start with your default weather.