About AFCAD

::)when I have made some change to an airport, then the airport appears several times in the list in AFCAD, my question are now how can I delete the "older" versions ? 
which is shown in a faded print. because both FS9 and I just need the newest one and also to avoid possible conflicts between the versions.
I have tried to look in FS9/Addon Scenery/scenery but it seems that there are only one bgl file for every airport.
hope that somebody can help me
yours snoopy51

which is shown in a faded print. because both FS9 and I just need the newest one and also to avoid possible conflicts between the versions.
I have tried to look in FS9/Addon Scenery/scenery but it seems that there are only one bgl file for every airport.
hope that somebody can help me
yours snoopy51