They were fighting the Soviet invasion of Afghanistan in the 1980s, but from what I remember they go back quite some time in one form or another. I seem to remember that even Alexander the Great had trouble conquering Afghanistan. Didn't, in fact.

The US didn't invent the Taliban anymore than Ben Laden did. (Neither did the US invent Saddam, who was trained and supported in his early career by the KGB. He's a devout admirer of Stalin, remember?)

Even taking into account the fact that the US provided supported Afghan freedom fighters in the 80s, it doesn't support your contention that the New Century crowd could use something like them to conquer the world. I seem to remember that the Taliban hated us almost as much as the Soviets. Assume that Afghanistan was a target and we used the Taliban to hold it. How long do you think they would have waited to do everything in their power to throw us out? They wanted their country free of all the foreign devils.