Can't log in

[Skrewdriver]

Hello.

I've installed Supreme Commander: Forged Alliance, and then installed FAF. I've completed registration, confirmed e-mail, tried to login, got that small "logging in..." window, and it looks like I'm stuck there.
After a quick search I've found out that such problems may be caused by trying to login into multiple accounts from one computer. I suspect that my younger brother might have installed FAF earlier (no one else used my computer), but it looks like he uninstalled everything after that. I've checked registry and there's nothing about previous logins here.

Log: http://pastebin.com/XbdCpc3K
(it adds a few new "Searching map preview" from time to time, but I don't think it really matters)

Also, I've found out that linking FAF to steam may help, but my Supreme Commander is non-steam. I can buy it on steam (I don't want to, but I will if there'll be no other ways), but only if I'll have guarantees that it will help.

[Sheeo]

You should be able to activate your supcom key in steam.

We're working out issues with the UniqueID system which is tripping you currently. Activating your game on steam is the quickest way to resolve it for now.