I have a problem with Jadgen program

Well i downloaded Jadgen, but when i try and drag the Jar file to Jadgen, it will not let me, any tips on what im doing wrong?

I am having the same problem. I did unzip the file and it still will not carry over to the TKfile to upload. It changed the JAR to a JAD file, but sill nothing. I'm not sure if I have the folders set to open in the right area. Any advise would be appreciated. Also on the install guide it says to "On your phone navigate to the exe/java/games folder" I'm am not finding how to access this run. Sorry this is probably something very simple but I am new to this and not the most computer savy. I have looked through the seach guide but nothing matching came up. Thanks in advance for help....really my head feels like it is going to explode.