Wind noise is difficult to get rid of and the process is a long way around the problem. Plus the problem needs to be defined; by that I mean what is the wind noise mixed with?
But here is a thought. Instead of capturing the video with the computer connect the camcorder's audio to an equalizer and from the equalizer record the audio and video to another DV camcorder which you can then use for capturing. The equalizer will let you filter some of the wind noise out by experimenting with the adjusters for each of the frequencies. The problem, of course, is that some of the frequency of the wind will also be the frequency of the sound you want to keep but it can help. There is a tool for this called a notch filter but they are very expensive.
Good luck, Ken

First off, an audio track is an audio track, so unless you have a compelling reason to move it from one track to another then just leave it where it is. Otherwise, just drag and drop the audio clip to whatever track you want. Is that what you are talking about? If you want the audio to truly be treated as being independent from the video then select the audio event and press "U" to ungroup it from the video. You can then drag/drop the audio event to anywhere you want.

Yes.. I have a rather compelling reason. The reason I feel compelled to is that I want to start the audio playing over the last video clip. Haa, so that is why I feel compelled to. : )

You can do that without dragging the audio to another track. If you want the audio to overlap, but not the video, then ungroup the audio from the video, shorten up the video event, group the audio and video again (by selecting both the audio and the video and then pressing "G"). You then have the audio/video events synchronized, but the audio starts before the video (it is now longer than the video). You can then overlap the audio into the previous event the same way you would overlap any events: by dragging the event into the previous event. Does that make sense?