I can't import my save from Dawn of War 2 Chaos Rising to Retribution?

I had saved games from Chaos Rising, but my computer broke and I lost all my saves. When I got DAW2: Retribution it imediatly asked if I wantedto import my saves to the game. I didn't have any but I still played the game. However, I didn't like the story, so I instaled DAW2 and DAW2: Chaos Rising played them again and when I finished I whent back to DAW2: Retribution to import those saves. Except that I can't find any option to import those saves. I tried to erase the firt save from the campaign of retribution but it didn't helped.