Welcome to the forums Jeo.
You should use Gamersgates s/w to see if 1.05 is up, if you purchased Paradox's verision. According to that only 1.04 has been uploaded
Not sure what GamesShadow is, I suspect though that its some widget to check latest versions or something.
When you get the patch from here though (looks like sometime tomorrow), then in your case, Id say the Law of Beta-testing applies. That is.....
If youre that worried make an archive of your directory/folder or just copy it if you have the drive space.
Then apply the patch. If it fails to work properly for whatever reason then delete the affected folder and unzip, unrar or just copy the backup and use that version.