Not sure what you did......
Download Mach3 from this site, then install it to the default folder, run the driver test, then configure Mach for your router.
You should select MACH3 MILL. You can select what text editor you want to use in MACH via the Tab at the top of the screen
Config> General Logic Configuration screen you will see Editor, click the browse and select the editor you wish to use.
RICH