Weldon--I was there: I had just moved to Chicago three years before that. There was no question at the time and I have no doubt now--the run was wind-aided. Everyone who was there was perplexed why it wasn't announced as wind-aided. Please look at the following video of the race--
http://www.youtube.com/watch?v=dAvBonP6J0w
--and focus on two things: first, the number on the back of the runner to the right of FloJo as she is in the "on your marks" position--you can see the wind kicking up the number; second, look at FloJo's hair after the race as she turns back to the finish line.
SDW