On the PC edition, the "saves" are actually Windows Registry files, which you *will* need admin access to.
Here's the regedit path to the reg keys, for anyone interested. WARNING: MESSING WITH REGISTRY KEYS IS *NOT* FOR THOSE WHO ARE INEXPERIENCED. YOU COULD POTENTIALLY BRICK YOUR COMPUTER IF YOU MESS WITH SOMETHING OTHER THAN WHAT YOU NEED!
Computer\HKEY_CURRENT_USER\Software\Stefo Mai Morojna\Spaceflight Simulator