Michael Todd & daughter's photo via BBC Website
By chance I just saw this thread and I would like to wish you luck in finding your daughter Sajida.
I am sure it is difficult to get the ear of Bush or Blair on such a subject. I wonder if you would have more luck trying to contact people lower in command, yet on the ground there (or, who were on the ground there... or who know people on the ground there...). For example (off the top of my head) I know there's a military blogger named "Chief Wiggles" who set up a toy drive for children. I have no reason to think he could personally get you any closer to your goal, but it's worth a shot, as contacting someone like him (you can email him from his page) at least has a chance of getting your request "into the loop" so to speak, if he could pass it along to someone who might be able to get the wheels turning, point you in the right direction, etc. I imagine there are other military bloggers etc. out there, and if you found this website, I'm sure you could find them, I know that all of them would like to help you find your daughter if at all within their power.
Again, best of luck to you sir.