Importing symbols from another movie

How does the action script that imports from symbols from another movie work. Koolmoves give the ability to import symbols from other moves, but the action script does not seem to follow. I made a few changes to the script but when I test the script the new lines do not seem to be a part of the attachments? The scripts seem to work, but the newly added code does work. It seems as like the original script is running from the other movie?
Not sure what's happening. Can anyone shed some light?

Thanks

I am not sure what you mean by this comment

"How does the action script that imports from symbols from another movie work. Koolmoves give the ability to import symbols from other moves, but the action script does not seem to follow."