Well just tested with my SMP world and MCMapDZ seemed to work just fine with it. Only noticeable thing were the large trees which were all grey and a few building blocks also being transparent, but nothing too noticeable or unexpected. you can find it at
http://www.minecraftforum.net/topic/253696-mcmapdz-048-·-simple-lightning-fast-interactive-web-maps/
Then just extract it and run the mcmapDZ-GUI.exe, point it to the level.dat file in your world folder and change any settings, then once done just locate the render folder from where you ran the exe and open up the index.html file. It will load the world in your default browser.
