www.mediafire.com is what i normally use
Try drag/dropping the save into Horizon and tell me if you're getting an error or not. Cause when I drag/dropped your save into Horizon I got an error because the save was just the STFS file not the CON and you need to open the CON file to mod it. CON file is the main save, the STFS is the save that is inside the CON file.