What's up? The zipped set should just extract into a temporary folder [say on your Desktop] and then you move the entire contents of that temporary folder into the Plugins folder - there should be 13 .rb files to move over, AND make sure the other files in the TIGtools subfolder in the zip-file remain in their TIGtools subfolder that you put inside Plugins too... Tip: check that you have proper permissions [access rights] to add files to the Plugins folder...