Hi guys,
Recently I came across a JS plugin that allows media queries to work in Internet Explorer 6 - 9.
https://github.com/scottjehl/Respond This is a very lightweight javascript file.
I have tested this myself and it seems to work like a charm. (tested on a Windows computer with IE 6 - 8)
http://adifferentdesign.be/responsivetest/
For Responsive images you can use the Filamente group's js plugin.
https://github.com/filamentgroup/Responsive-Images
What do you guys think ? any drawbacks ?