Fixed: fnDrawCallback was actually the first of the draw callback functions that was called (the internal callbacks were called later). This was incorrect and we now loop over the array to get the order we want. At some point in future it might be required to have an ordering if these draw callbacks become interdependant.

media/js/jquery.dataTables.js

@@ -3165,7 +3165,7 @@
 			}
 			
 			/* Call all required callback functions for the end of a draw */
-			for ( i=0, iLen=oSettings.aoDrawCallback.length ; i<iLen ; i++ )
+			for ( i=oSettings.aoDrawCallback.length-1 ; i>=0 ; i-- )
 			{
 				oSettings.aoDrawCallback[i].fn.call( oSettings.oInstance, oSettings );
 			}