This JSFL script will allow you to click on a movie clip on the stage, run the script, and you’ll get the library item that clip is associated to. It’s great for working on projects that you may not have made or if you don’t remember which folder the clip is buried into.
boot drive\Documents and Settings\user\Local Settings\Application Data\Macromedia\Flash 8\language\Configuration\
Mac OS X:
Macintosh HD/Users/userName/Library/Application Support/Macromedia/Flash 8/language/Configuration/
Restart Flash and the command should now be available in the Commands menu up top. I found all this out a very easy way: it (along with a lot more about JSFL) is in the Flash help files. Just do a search for JSFL and there you go!