The only affiliate to fail since March was Oriental Trading. It didn't impact the assets under management number Carlyle publishes. For a recap of Rubenstein's Forbes net worth estimates (pictured at the top of this post):
2007 $2.5 billion
2008 $2.7 billion
2009 $1.4 billion
2010 $2.5 billion (March)
2010 $2.0 billion (September)
I don't see him holding or taking home less, not in the last six months of 2010. Maybe, Mr. Rubenstein gave more of it away.