I have searched the posts, keeping up with reading the daily questions and perused the guides so far I just don't get it.

After copying several tapes to my hard drive from a JVC GR-D250 video camera I need to encode to MPEG-2 and a few MP4 for my wifes facebook page. Is Aidemux 2.6.18 a viable encoder? I would also like to split off the audio and replace it in a few spots also. Can I do that with Avidemux? It is not intuitive to me how to use the program and havent found a step by step guide.
Next question is about when I need to deinterlace the DV to be used on the internet. Is this is done before encoding? What progrtam will deinterlace DV for the rare situation that it is required?
Last question is am I making it hard on myself by stubbornly

using my windows 7 computer for dealing with DV? I know for capture XP seems to be the way to go.
Thanks you guys are the greatest