Animation for images to fly up from bottom of screen using VS blend

[compulove]

I am creating an app that will allow the user to click on images and then they will transform into something else, and the code to do that is below:

 private void Image_Tapped(object sender, TappedRoutedEventArgs e)
        {
            BitmapImage bitmap = new BitmapImage(new Uri("ms-appx:///Assets/smallImage.png")); 
            imageHolder.Source = bitmap;
            e.Handled = true;
        }

Now the hard part is that I have to get these pre-transformed images to fly up onto the screen so the user can rush to click on them before they fall. I figured I would need to create storyboards and add those effects, if that is right word for it, but how exactly would I go about this in blend?

[pritaeas]

http://msdn.microsoft.com/en-us/library/cc295300.aspx