Couldn't really get that title right...
My problem today is that I upgraded to Ubuntu 13.04 and now I cannot install Amnesia, a already bought peace of software, from the software center. I'm logged in, I've checked reinstall previous purchases and I've continued through the buying process all the way to payment.
Now, if you cannot help me here, I have another solution as I have the files saved on an external harddrive, but... I don't know how I get it "installed" searchable through the Unity Dash and so on.
I really like to be able to install it from the Software Center so if you know any solution there I'd be very glad.