P roblem with texture painting

Hi!
I can’t solve the problem with Texture Painting - Clone. I have Blender 2.68a
Please help.
This is the blend file

http://pasteall.org/blend/24508

I can’t solve the problem with Texture Painting - Clone.
What problem precisely ? At least tell us something

I try to paint but there is no result. The left screen is still black. I can paint using Blender 2.5 but this version of blender is different. I don’t know what I can do

Try tabbing into edit mode, selecting all vertices and going back into texture paint mode. Then paint