Ducting in the attic, possible asbestos..plz help

Southern Calif. house built in 1973.
It looks like asbestos ducting connected to some newer type of
ducting…Does this look ok? Or should I recommend corrections?

David

http://i187.photobucket.com/albums/x296/dawlita/Oakwell086.jpg

http://i187.photobucket.com/albums/x296/dawlita/Oakwell083.jpg

http://i187.photobucket.com/albums/x296/dawlita/Oakwell081.jpg