Dell 4550 with Soundblaster audigy 2 preinstalled

Creative Media Source player was working at first, then it stopped recording from the input source. Instead of recording it would play whatever was in the library. I then downloaded and installed the update for Creative  Media Source from the Creative website but it still remained the same. Then I tried uninstalling and reinstalling just the Creative Media Source software from the Soundblaster Audigy 2 CD that came with my Dell. It did not work.

Now when I try to open it I get this message: "Unable to load the Theme Engine".  When I try to uninstall it again from the add/remove programs I get this message: 'An installaton support file could not be installed.  The system cannot find the file specified". So I am unable to uninstall it. I tried reinstalling it anyway, but nothing changes.

Can anyone advise me how to get Creative Media Source reinstalled properly and to work? Thank you