bump
just going through some old links and found yours paul.
if you still havent sorted hat dvb card out ,i came across this
AVS TV Box FREE Beta
http://www.avsmedia.com/TVBox/index.aspx
AVS TV Box Beta is a free universal software TV viewer with Personal Video Recorder functionality (PVR) allowing you to schedule TV recordings.
AVS TV Box works with any windows video capture device like satellite, TV and DVB cards, miniDV cameras, web cams, etc.
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it see's my bt analogue card and my DVB-T bda card fine, so it might work for for you.
laters....