But ok, this has to work (I've done it myself).
1. Upload the "yeti5pro_data" folder in your arcade/gamedata folder.
2. Upload "yeti5pro1.gif" & "yeti5pro2.gif" in your arcade/images folder.
3. Upload yeti5pro.swf in your arcade folder.
4. Install the game manually from AdminCP as I instructed earlier.
I've used this same zip file and installed the game manually and it works.