The world map was all out of sorts so, i removed all the map data and its currently working on regenerating the textures.
That being said the overviewer script is on the minecraft VM so you might see some lag
I have started a cron job to run every night at 4am to update the map, currently its going to take 8 hrs to render the initial overworld map. after that the cron will just do tile updates. To check it out Click Here