According to manufacturer's product page, that model TV card isn't supported on Windows 7 or higher.
The supplied drivers are only for Windows 98/ME/NT/2000/XP - - - those drivers don't work on Windows 7, that's why the device cannot be detected.
http://intexuae.com/products/tv-tuner-card-with-fm-it-7130fm/
You will have to buy a TV card that comes with Windows 7 drivers.