Newbie audio help

Hi all, I am trying a spot of video editing for the very first time as I need to move stuff from tape to my Hard Drive. I use a Canon MV750i and I am connecting this through the av socket into a Dazzle DVC90. This is then connected via USB to the PC. I am then capturing this through Movie Maker (the free software that comes with windows). I am saving the work onto an external Hard Drive.
My problem is audio. I can see the video fine, and is of a good enough quality for me at the moment, but I cant hear any sound. If I import sound, such as a music track, this works fine. I have looked at the DVC drivers, which were initially giving a problem, but they are now fine. What am I doing wrong?

Any help gratefully received!!

Dave
AHH, sorry, just solved it! I hadnt selected the DVC90 as the audio source!! Stupid!!