MONO for windows won't help you much with Android development - you need what was called MonoDroid, and which became
Xamerin[
^] - unfortunately, to use VS you need a paid version, and I think (but I'm not sure) that you need at least VS2010 to use it - I could be wrong on that so it's worth checking.
Why don't you check out this:
http://www.codeproject.com/Learn/Android/[
^] - it's "learn Android" moth at CodeProject!