I'll buy a pair of Nike Pegasus to the first person who posts under a registered name proof of another race having altered the time on the clock when the runner crosses the finishline and sending it out prior to today. Maybe you can find one but I've never seen it done.
I went and looked at the finish video and it sure does look altered. I'm contacting the photographer.
It would be pretty ironic if the only example cited of this besides the Nike photo was from LetsRun.com. It wouldn't make it acceptable in either circumstance.