The screen button is programmed to call the wizard as C:\mach3\addons\newfangled Thats where the standard install puts the file.
When I post a new version I name it newfangled283 so it will be clear which version it is. If you simply unzip that package it will wind up in C;\mach3\addons\newfangled283 so the button gets the old script. If you look st the wizard pull down menu you will see both and can select teh one you want.
There is no reason to keep an old version. Delete your file called newfangled and rename the newfangled283 to be just newfangled.
I have had problems that Brian keeps getting an old version into the mach install kit so if you update Mach to a new version it replaces the newfangled with the old one. Ill try again to get Brian to only use the current version.