use this driver (not as easy to find as the wintv one, but works perfectly) http://www.hauppauge.co.uk/pages/support/support_new_mce.html
Still having some problems with it randomly showing nothing but a black screen when viewing channels, a reboot sorts it out temporarily but i know i'll see the same problem again! Out of interest, are you using Vista MC yourself? If so are you using x64 or x86? What are your system specs? Do you have the Nova-T 500 yourself?
Am thinking about a full re-install of Vista, but want to see if somebody else has a similar setup working correctly before i do

