1) You run the JSGM exe and install it into your RV folder. You let it "Create a Desktop Icon". You can install the Icon into your RV folder or onto your desktop. I do the "decktop" and then "pin it to my taskbar" for games I use a lot. It's your choice.
EDIT:
Then you next to double click this "icon" and agree to install the "MOD" folder.
2) You then copy the Summer and Winter mod folders into this "MOD" folder
3) I then went into the "Mod" folder and made a folder called "Eastern Front Sounds" and in that folder you make a "Media" folder and copy all the Eastern Front Sound files into this "Media" folder.
4) Now just enable or disable want you want. You just double click the
JSGME icon you created (see #1) and pick what you want.
The modder can setup his folders for JSGME.
Example: The sound mod would have already have the proper folder and you
won't have needed to make a "media" folder.
See my rough images.