May you explain more on some parts because it still doesn't seem to be working while doing what I understanded on your reply
best way i can explain it is that its a .rar file so you have to extract it from the .rar file. to do so you can use either 7-zip like vendena suggested or you could use winrar(i personally use winrar but you can use either). when you go to open the .rar file itll ask you to extract it you just have to have a folder made where you want the game at and extract it there. hope this helps some and sorry for the length