Create a blood spill animation

Hi Please see the following two links. Shot A) [login to view URL] This scene, is a shot from a film we did. It's a close up of a man who hit is head and is bleeding. Shot B) [login to view URL] This is a wide angle shot that happens just before shot (a) - We need this shot (b) to show blood starting to flow from his head in a way that, when we go to shot (a) it looks like the shots work together. We think this can be done in After Effects best. We need you to please download the movie file, work on it and be able to send it in the same format, ie: via yousendit or dropbox back to us. What we'll be looking for: - Blood must be the same colour - Blood should be the same amount - Blood should look realistic and flow like that.