To the best of my knowledge it hasn't flown yet. According to various reports in the press there were some issues that arose during ground testing the new engine on the C-130 that are now being worked through. Apparently nothing too unexpected but the press reports I read didn't go into detail. A certain amount of successful ground running has to take place before it takes to the air on the C-130. I'm sure that when it does fly, there will be a press release.
Here are some recent press reports;
Hamilton Sundstrand A400M Propeller System Fully Functional On C
A400M set for take off at last
FARNBOROUGH 2008: A400M engine tests present 'no issues' for Europrop team