Hi,
AudioLabel simply reads all the fonts installed on your computer, and does not install fonts.
I did a quick search, and it looks like this font is installed with some of the Windows Office products (see the link below):
http://www.microsoft.com/typography/fonts/font.aspx?FMID=599So you could install one of the Office products above, or do a Google search for "Showcard Gothic Font" and try to download and install from a free font website.