As people have already said, but not as in depth:
Your graphics output is outdated, and doesn't support Shader Model 3.0, which was released with DirectX 9.0c.
DirectX 9.0a and DirectX 9.0b both were based upon Shader Model 2.0, neither of which would work.
So in the simplest terms, you need a graphics output with DirectX 9.0c or later support, which is an issue, because your current CPU doesn't even have an integrated graphics output.
To put it bluntly, your PC can't run the game, or really any game released after 2005 for that matter.