tried every single one on the first page of google you posted. None of them worked, either said I needed iLife '08 (which severely pissed me off since I actually bought '09) or that I needed the previous version of iMovie, since it was just an update, or that I already had a newer version of iMovie, so I couldn't download it.
After all of those attempts I got fed up.
Anyone have a direct download to the application?