Trouble with mating cylinder and toroid

My problem is shown in the photo.  I have the two bushings sharing a concentric mate and each bushing has two tangent mates to two of the frame tubes.  I would have believed this would define the parts as touching the tubes but they are still floating around.  I'd like to figure out what I can do to fix this.  Thanks.http://i371.photobucket.com/albums/oo160/pulsar08/bushingproblem.png

SolidworksAssemblies