Some DVB front-ends, including the TDA10045 used by the Nova-T, require firmware. Fortunately, as long as you know which chip is on your card, kernel 2.6 now makes this quite straightforward. In Documentation/dvb is a script called get_dvb_firmware. Near the start of the file is a variable called @components with a list of supported chips. Pick the one that matches your card and use it as an argument to the script eg:

This will download and extract a suitable firmware image for the card and tell you where to install it. The module will automatically upload it to the card when necessary.