Batch Flash FLA Import, Swap Symbols, Export PNG Sequence

I need a command for Flash CS 5.5 that will present me with a GUI allowing me to choose -an Imported directory and a check box to use all subdirectories -a Destination folder and a check box to use all subdirectories -an Output directory and then execute the following: 1) import the import folder and subdirectories of FLA's containing symbols into a destination folder and subdirectories of FLA's one at a time 2) overwrite the symbols in the destination folder FLA's with the imported FLA's symbols 3) export a PNG sequence named automatically by the files that it has imported followed by the destination fla and then image number, so: [login to view URL] into a folder of the same name I would appreciate it if the script does not save and overwrite the destination FLA's or create new FLA's, to save space.