Welcome to the forum. 
As R_Vera suggests, Studio 11 may simply not work on Windows 8. I don't recall anyone else saying that they have successfully installed it on that OS.
However, it appears that you do have it installed. What happens when you try to use the audio files? Do you get an error message?
It may be that some codecs need to be activated. Since S11 is so old and no longer supported by the company, I'm not sure whether we will be able to help you with that. But, first, please explain in more detail the problem you are having.