Cycles is not using the materials created by MakeHuman I am using a blender and  MakeHuman .mhx file to model some persons moved in a scene and captured by a fisheye lens camera.

I model a person with clothes on MakeHuman and I load it in blender in mode Cycles Render (because fihseye lens work only in Cycles Render). When I render I get a person without clothes and a lot of noise caused by the light (see image1). But in Blender Render I get the person with clothes (see image 2).
I'm guessing that the Make Human importer sets up a Blender Internal Material based on the Material that's in the file you imported.  This is not automatic yet for Cycles rendering yet.

First you have to go to the Materials Tab and click the 'Use Nodes' button.

Now you can up the Node Editor and add an Image Texture.  Next, plug the Texture's Color output into the the Shader node's Color input.