New cover! 2012.
Michelin has just published an updated map for the region [April 2012]. Some new highways have been constructed, and South Sudan is another country so borders have changed. Great for a wall poster since it opens up quite large. The previous edition dates from January 2003.
Here's a supplier in the United Kingdom. And another one. Make sure to ask for the latest edition.
In the USA try maps.com
Maptown, in Alberta, Canada...
This is what the old cover looks like. Don't get this one, the map date from 2003...
old cover from 2003