No. In fact, I tend to believe that this is just a story that someone made up and it made the e-mail rounds. Had Atta used stolen IDs to access the jumpseats, it would be a piece of cake to trace his tracks and you would've heard about this on Sept. 20.
I have followed quite closely all of the news stories, publications, and personal accounts relating to the events of 9/11. But this is the first time I have ever heard this story. This Pat Gilmore would surely have come forward within a week after 9/11 and would have had his own hour on the Larry King Show. No, it doesn't pass the smell test. Or the "If it seems too good to be true, then it isn't" test.
Nothing on http://www.snopes.com about it...
Only if one made the simple-minded assumption that Atta stole the documents himself.
In my mind, terrorism has always been a well-organized worldwide conspiracy. Those document could have literally been stolen anywhere in the world; if the ID was simply duplicated, rather than stolen, there would be no way, period, to tell that that particular ID should be on a "watch list".