Microphone vs Vista

Im not really sure if this is the right section but...
I have an Andrea Anti Noise NC-61 headset with mic, it worked fine for ages and now since ive gone to vista and tried to use the mic part of it, nothing happens. (the speakers in it work fine)
I contacted the manufacturer to see if it is compatible with vista and they said:
"The microphone plugs into your soundcard mic input. Choose your soundcard as the recording input device."
Very usefull :-?
The microphone doesn't appear in the list of recording devices and when i open teamspeak it tells me there is no audio input device installed.
Any help gratefully received :)
I have an Andrea Anti Noise NC-61 headset with mic, it worked fine for ages and now since ive gone to vista and tried to use the mic part of it, nothing happens. (the speakers in it work fine)
I contacted the manufacturer to see if it is compatible with vista and they said:
"The microphone plugs into your soundcard mic input. Choose your soundcard as the recording input device."
Very usefull :-?
The microphone doesn't appear in the list of recording devices and when i open teamspeak it tells me there is no audio input device installed.
Any help gratefully received :)