When I saw this post, I got concerned. I would really like to be in this beta. But even though it might get someone picked over me, know that you can add a game to Steam that you buy elsewhere.
For instance, I bought my game through Paradox directly. But it so happens you can transfer it to steam pretty easily. For those of you that might not be familiar, note that you can go to Steam, and click "ADD A GAME" in the bottom left hand corner:
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Which you can click on to bring this up:
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Just click that "Activate a Product on Steam" button, and go through the menu until you get here:
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Then go to your Paradox account and hit "Manage" on the games you want activated:
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And it will list a "Steam Key," which you punch into that "Product Activation Code" above. Then boom, you have it up.
I uninstalled the original before I loaded the new version, which I am not sure if you have to do. I bet you do, but... who knows. I didn't take the chance.
Fortunately, if you have it save files on the cloud, it will automatically re-synch your games.
So boom, game off steam is now on. Not sure if this will help you guys or not, but I did it in hopes that would work. It did, game runs fine. Good luck.