poor instalation method, i don't like searching some JSGME and install it inside Steam app folder, sorry to say that, there is no other solution to let people install it in 1min?
The reason for JSGME is because alot of files have been modified and JSGME takes care of the backups of files for you. The program is excelent and you can use it for installation of other mods and games to instead of copy/paste the files manualy and make backups of the files "manualy".