You have to put folder "Insewerants Space Agency" into gamedata folder, if you put Parts and Plugin into KSP_win (MAC?), the plugin won't work. I don't know why, but I think that's all because of PluginData folder.
Super!!! Will it be possible to dive without any details from mod? Or maybe think about adding tiny and light detail for researching oceans of Eve. Kerbin and Laythe.