surfaces

http://forums.cgsociety.org/showthread.php?t=373024 I saw this tutorial a while ago and decided to work through it and see what I could make. I used the object in the tutorial as a template and came up with something similar to texture. Then, with the aid of UVMapper, I created my texture...

I have question: How do I paint the surfaces on brushes? I think you know what I mean. (Like this instead of this.) So therefore I really hope there is someone there can help me.