After reading the thread and doing a little research on Richard Dawkins here is my answer:
No. I don't think Richard Dawkins believes in intelligent design as an explanation for how life, as we observe it now, came to be on this planet.
Yet he appears balanced in his thinking to a very high degree.
So much so that he does not summarily dismiss the notion, no matter how fanciful it may sound, that it is indeed possible that there could have been some kind of intelligent meddling in the process. He makes it clear that the intelligent meddlers, or aliens, would they themselves be the product of Darwinian evolution, but from another planet. All rational thoughts. It is clear he chooses not to believe that to be the case himself.
I tend to agree with Dawkins that this is extremely unlikley, but like Dawkins, I cannot summarily dismiss it as "absolutely not possible".
Yet I can weigh the evidence and choose not to believe it, as Dawkins has done. The same way Dawkins chooses not believe in the existance of pink unicorns yet he cannot summarliy dismiss the possibility that somewhere on some remote undiscovered island they could exist.
Peace to all.
The Oracle