... on the words "apology for colonialism congo" gave among others two results.
There seems to have been a more critical exhibition in a Belgian museum some years ago:
http://query.nytimes.com/gst/fullpage.h ... wanted=all
I also found a chapter from a book called "The Historiography of Belgian Colonialism in the Congo" by Guy Vanthemsche. He quotes an example from a 2006 Belgian schoolbook :
"When the Belgians arrived in the Congo, they found a population that was victim of bloody rivalries and slave trade. Belgian civil servants, missionaries, doctors, colonists and engineers civilized the black population step by step. They created modern cities, roads and railroads, harbours and airports, factories and mines, schools and hospitals. This work greatly improved the living conditions of the indigenous people."
So it seems they haven't really faced their past yet.