All that really needs to be done is some minor boost in saturation and leveling out (adjusting) with the brightness and contrast. The pic below shows a comparision of the levels adjusted with your original on the bottom

in all honestly your original is still fine by me, and I do want to work out something to get a hold of your hd2dvd edition (send me a PM), but for the higher up format you are going for and to make it look as good as possible you would need to re-encode the clip with the color adjustments before converting to an AVCHD