To begin using scripts in the Scripting Library:
When you run the app, first it will download the library. Then it will ask you to choose which scripts you wish to have appear in the BridgeComposer "Script" menu (see image below). Click in the checkbox next to each script that you want (or click the "Check All" button), and then click "Next".
(Refer back to the Scripting Library page for a description of what each script does.)
If for some reason this app does not work for you, you may install scripts "by hand".
DISCLAIMER: Software from this site is provided "as is". In no event shall the author be liable to you or any third party for any damages of any kind arising out of or relating to the software or the use thereof.