I have one for the current version of Blender (or at least 2.73); here's the link to it that I've uploaded:
http://www.filedropper.com/iomeshmd2
I can't give you the source because I forgot where I downloaded it from.
Place it in your "[Blender Installation Folder]\[version]\scripts/addons\" (in my case it would be "C:\Users\Admin\Blender Foundation\Blender\2.73\scripts\addons").
To import, import like normal: