That app, whatever it is, uses old X fonts, not freetype/fontconfig. So fc-cache is not what you should use.
After putting the font files in the proper dir and updating the indexes with mkfontdir/mkfontscale, restart your X server. Use "xlsfonts" to see which old-style fonts are available.
edit: The mentioned font seems to be -adobe-courier-bold-o-normal--14-140-75-75-m-90-iso885, which is usually 75dpi/courBO14-ISO8859-1.pcf.gz.