I looked in the download directory and was not able to see that sasteam.exe that it says to try to run from that link you just provided
I suspect you mean 'install directory'. For the Steam version, that would be a required file. If you installed the trial from our site, perhaps in an attempt to fix your issue, that would be why you would not have that file. Its important that you only use the Steam version if that is where you purchased from.
Stardock Customer Service Manager