Yep, the government of my country certainly did swallow it, most of the people here did not. As we had a conservative government at the time, they really had no interest in what the people thought, and sent our troops to war as well.
I live in Australia.
And in answer to your first question, no I do not buy the official story, nor do I buy the story on why Iraq needed invading. I do not, however, buy the bulk of the theories that have been put forward by a wide variety of people either.